diff --git a/COPYING b/COPYING
index ab3bc3d..3b67e1e 100644
--- a/COPYING
+++ b/COPYING
@@ -1,13 +1,28 @@
-%% Copyright (C) 2010-2012: Leslie Greengard and Zydrunas Gimbutas
-%% Contact: greengard@cims.nyu.edu
-%% 
-%% This program is free software; you can redistribute it and/or modify 
-%% it under the terms of the GNU General Public License as published by 
-%% the Free Software Foundation; either version 2 of the License, or 
-%% (at your option) any later version.  This program is distributed in 
-%% the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-%% even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-%% PARTICULAR PURPOSE.  See the GNU General Public License for more 
-%% details. You should have received a copy of the GNU General Public 
-%% License along with this program; 
-%% if not, see <http://www.gnu.org/licenses/>.
+Copyright (c) 2009-2012, Leslie Greengard, Zydrunas Gimbutas
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met: 
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer. 
+
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
diff --git a/README b/README.md
similarity index 52%
rename from README
rename to README.md
index 329105e..39169ca 100644
--- a/README
+++ b/README.md
@@ -1,37 +1,55 @@
+This is the second public release of the particle FMM library in R^2.
 
-This is the first public release of the particle FMM library in R^2.
-Date: April 13, 2012
+Date: November 8, 2017
 
-Version 1.2 - First external release.
+Version 1.2.1
 
-%% Copyright (C) 2010-2012: Leslie Greengard and Zydrunas Gimbutas
-%% Contact: greengard@cims.nyu.edu
-%% 
-%% This program is free software; you can redistribute it and/or modify 
-%% it under the terms of the GNU General Public License as published by 
-%% the Free Software Foundation; either version 2 of the License, or 
-%% (at your option) any later version.  This program is distributed in 
-%% the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-%% even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-%% PARTICULAR PURPOSE.  See the GNU General Public License for more 
-%% details. You should have received a copy of the GNU General Public 
-%% License along with this program; 
-%% if not, see <http://www.gnu.org/licenses/>.
+Copyright (C) 2010-2012: Leslie Greengard and Zydrunas Gimbutas
+Contact: greengard@cims.nyu.edu
 
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met: 
 
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer. 
+
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+### Contents
+
+```
 src/ - Fortran source code
 examples/ - Fortran testing drivers and makefiles
 matlab/ - matlab scripts and mex files 
 contrib/mwrap-0.33.3/ - mwrap source code
+```
 
-To test the library, please type 'make test'. 
+To test the library, please type `make test`. 
 
 
-Fortran
-=======
+### Fortran
 
 Particle FMM routines.
 
+```
 hfmm2dpartself - Helmholtz particle FMM in R^2.
 lfmm2dpartself - Laplace particle FMM in R^2 (complex).
 rfmm2dpartself - Laplace particle FMM in R^2 (real).
@@ -43,19 +61,21 @@ lfmm2dparttarg - Laplace particle target FMM in R^2 (complex).
 rfmm2dparttarg - Laplace particle target FMM in R^2 (real).
 zfmm2dparttarg - Laplace particle target FMM in R^2 (Cauchy sums).
 cfmm2dparttarg - Laplace particle target FMM in R^2 (generalized Cauchy sums).
+```
 
 Direct evaluation routines.
 
+```
 h2dpartdirect - Helmholtz particle target interactions in R^2.
 l2dpartdirect - Laplace particle target interactions in R^2 (complex).
 r2dpartdirect - Laplace particle target interactions in R^2 (real).
 z2dpartdirect - Laplace particle target interactions in R^2 (Cauchy).
 c2dpartdirect - Laplace particle target interactions in R^2 (g. Cauchy).
+```
 
+### Matlab
 
-Matlab
-======
-
+```
 % Helmholtz and Laplace FMMs in R^2.
 %
 % Particle FMM routines.
@@ -72,4 +92,4 @@ Matlab
 %   z2dpartdirect - Laplace particle target interactions in R^2 (Cauchy).
 %   c2dpartdirect - Laplace particle target interactions in R^2 (g. Cauchy).
 %
-
+```
diff --git a/matlab/Contents.m b/matlab/Contents.m
index 47abd03..acd9ae0 100644
--- a/matlab/Contents.m
+++ b/matlab/Contents.m
@@ -39,16 +39,8 @@
 %   timings_hfmm2dpart - timings for Helmholtz particle FMM in R^2.
 %
 
-%% Copyright (C) 2010-2012: Leslie Greengard and Zydrunas Gimbutas
-%% Contact: greengard@cims.nyu.edu
-%% 
-%% This program is free software; you can redistribute it and/or modify 
-%% it under the terms of the GNU General Public License as published by 
-%% the Free Software Foundation; either version 2 of the License, or 
-%% (at your option) any later version.  This program is distributed in 
-%% the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-%% even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-%% PARTICULAR PURPOSE.  See the GNU General Public License for more 
-%% details. You should have received a copy of the GNU General Public 
-%% License along with this program; 
-%% if not, see <http://www.gnu.org/licenses/>.
+% Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
+% Contact: greengard@cims.nyu.edu
+% 
+% This software is being released under a modified FreeBSD license
+% (see COPYING in home directory). 
diff --git a/matlab/Readme.m b/matlab/Readme.m
index 8c2f099..fc2a208 100644
--- a/matlab/Readme.m
+++ b/matlab/Readme.m
@@ -1,19 +1,11 @@
 function Readme()
 %README
 %
-% Copyright (C) 2010-2012: Leslie Greengard and Zydrunas Gimbutas
+% Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 % Contact: greengard@cims.nyu.edu
 % 
-% This program is free software; you can redistribute it and/or modify 
-% it under the terms of the GNU General Public License as published by 
-% the Free Software Foundation; either version 2 of the License, or 
-% (at your option) any later version.  This program is distributed in 
-% the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-% even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-% PARTICULAR PURPOSE.  See the GNU General Public License for more 
-% details. You should have received a copy of the GNU General Public 
-% License along with this program; 
-% if not, see <http://www.gnu.org/licenses/>.
+% This software is being released under a modified FreeBSD license
+% (see COPYING in home directory). 
 %
 
 
diff --git a/matlab/fmm2d.mw b/matlab/fmm2d.mw
index 6698e0f..8587f8e 100644
--- a/matlab/fmm2d.mw
+++ b/matlab/fmm2d.mw
@@ -1,19 +1,11 @@
 @function Readme()
 %README
 %
-% Copyright (C) 2010-2012: Leslie Greengard and Zydrunas Gimbutas
+% Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 % Contact: greengard@cims.nyu.edu
 % 
-% This program is free software; you can redistribute it and/or modify 
-% it under the terms of the GNU General Public License as published by 
-% the Free Software Foundation; either version 2 of the License, or 
-% (at your option) any later version.  This program is distributed in 
-% the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-% even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-% PARTICULAR PURPOSE.  See the GNU General Public License for more 
-% details. You should have received a copy of the GNU General Public 
-% License along with this program; 
-% if not, see <http://www.gnu.org/licenses/>.
+% This software is being released under a modified FreeBSD license
+% (see COPYING in home directory). 
 %
 
 
diff --git a/src/cdjseval2d.f b/src/cdjseval2d.f
index b5d4376..e5c9c98 100644
--- a/src/cdjseval2d.f
+++ b/src/cdjseval2d.f
@@ -1,16 +1,9 @@
-cc Copyright (C) 2009-2011: Leslie Greengard and Zydrunas Gimbutas
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
+c
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date: 2011-02-22 17:34:23 -0500 (Tue, 22 Feb 2011) $
diff --git a/src/cfmm2dpart.f b/src/cfmm2dpart.f
index d9d9b02..66a0fa7 100644
--- a/src/cfmm2dpart.f
+++ b/src/cfmm2dpart.f
@@ -1,16 +1,8 @@
-cc Copyright (C) 2010-2011: Leslie Greengard and Zydrunas Gimbutas
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date$
diff --git a/src/d2mtreeplot.f b/src/d2mtreeplot.f
index 4049a29..1290218 100644
--- a/src/d2mtreeplot.f
+++ b/src/d2mtreeplot.f
@@ -1,18 +1,8 @@
-cc Copyright (C) 2010: Leslie Greengard, Zydrunas Gimbutas, Vladimir Rokhlin
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
-ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
-c
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c        this is the end of the debugging code and the beginning 
diff --git a/src/d2tstrcr.f b/src/d2tstrcr.f
index 8f191f7..803b981 100644
--- a/src/d2tstrcr.f
+++ b/src/d2tstrcr.f
@@ -1,16 +1,9 @@
-cc Copyright (C) 2010: Leslie Greengard, Zydrunas Gimbutas, Vladimir Rokhlin
+cc Copyright (C) 2010: Vladimir Rokhlin
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date: 2011-09-07 11:05:19 -0400 (Wed, 07 Sep 2011) $
diff --git a/src/d2tstrcr_omp.f b/src/d2tstrcr_omp.f
index 3c78339..966486a 100644
--- a/src/d2tstrcr_omp.f
+++ b/src/d2tstrcr_omp.f
@@ -1,16 +1,9 @@
-cc Copyright (C) 2011: Leslie Greengard, Zydrunas Gimbutas, Vladimir Rokhlin
+cc Copyright (C) 2010: Vladimir Rokhlin
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date: 2011-04-15 22:14:18 -0400 (Fri, 15 Apr 2011) $
diff --git a/src/h2dterms.f b/src/h2dterms.f
index 3487ec4..46b0dcc 100644
--- a/src/h2dterms.f
+++ b/src/h2dterms.f
@@ -1,16 +1,9 @@
-cc Copyright (C) 2009: Leslie Greengard and Zydrunas Gimbutas
+cc Copyright (C) 2010: Vladimir Rokhlin
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date: 2011-02-22 17:34:23 -0500 (Tue, 22 Feb 2011) $
diff --git a/src/hank103.f b/src/hank103.f
index 20a77f8..657be6d 100644
--- a/src/hank103.f
+++ b/src/hank103.f
@@ -1,9 +1,9 @@
-
-c
-c
-c
-c
-c
+cc Copyright (C) 2010: Vladimir Rokhlin
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
+cc Contact: greengard@cims.nyu.edu
+cc 
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c
diff --git a/src/helmrouts2d.f b/src/helmrouts2d.f
index f248aa5..581320d 100644
--- a/src/helmrouts2d.f
+++ b/src/helmrouts2d.f
@@ -1,16 +1,8 @@
-cc Copyright (C) 2010-2011: Leslie Greengard and Zydrunas Gimbutas
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date: 2011-04-25 22:45:52 -0400 (Mon, 25 Apr 2011) $
diff --git a/src/hfmm2dpart.f b/src/hfmm2dpart.f
index 76c804d..8829682 100644
--- a/src/hfmm2dpart.f
+++ b/src/hfmm2dpart.f
@@ -1,16 +1,8 @@
-cc Copyright (C) 2010-2011: Leslie Greengard and Zydrunas Gimbutas
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date$
diff --git a/src/hfmm2drouts.f b/src/hfmm2drouts.f
index eb3bc6a..618aa1e 100644
--- a/src/hfmm2drouts.f
+++ b/src/hfmm2drouts.f
@@ -1,16 +1,8 @@
-cc Copyright (C) 2010: Leslie Greengard and Zydrunas Gimbutas
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date: 2010-06-08 22:18:57 -0400 (Tue, 08 Jun 2010) $
diff --git a/src/l2dterms.f b/src/l2dterms.f
index d0449b7..93d8fcd 100644
--- a/src/l2dterms.f
+++ b/src/l2dterms.f
@@ -1,16 +1,8 @@
-cc Copyright (C) 2009-2011: Leslie Greengard and Zydrunas Gimbutas
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date: 2010-12-28 14:28:30 -0500 (Tue, 28 Dec 2010) $
diff --git a/src/laprouts2d.f b/src/laprouts2d.f
index 310d797..8ee121a 100644
--- a/src/laprouts2d.f
+++ b/src/laprouts2d.f
@@ -1,16 +1,8 @@
-cc Copyright (C) 2010-2011: Leslie Greengard and Zydrunas Gimbutas
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date$
diff --git a/src/lfmm2dpart.f b/src/lfmm2dpart.f
index 1f41e92..edaa8a0 100644
--- a/src/lfmm2dpart.f
+++ b/src/lfmm2dpart.f
@@ -1,16 +1,8 @@
-cc Copyright (C) 2010-2011: Leslie Greengard and Zydrunas Gimbutas
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date$
diff --git a/src/lfmm2drouts.f b/src/lfmm2drouts.f
index 23ceec2..5f1846e 100644
--- a/src/lfmm2drouts.f
+++ b/src/lfmm2drouts.f
@@ -1,16 +1,8 @@
-cc Copyright (C) 2010-2011: Leslie Greengard and Zydrunas Gimbutas
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date$
diff --git a/src/prini.f b/src/prini.f
index 8746505..5b0c1a8 100644
--- a/src/prini.f
+++ b/src/prini.f
@@ -1,3 +1,7 @@
+cc Copyright (C) 2010: Vladimir Rokhlin
+cc 
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date$
diff --git a/src/rfmm2dpart.f b/src/rfmm2dpart.f
index 1468a4f..97a661e 100644
--- a/src/rfmm2dpart.f
+++ b/src/rfmm2dpart.f
@@ -1,16 +1,8 @@
-cc Copyright (C) 2010-2011: Leslie Greengard and Zydrunas Gimbutas
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date$
diff --git a/src/zfmm2dpart.f b/src/zfmm2dpart.f
index dca9a51..2131bc9 100644
--- a/src/zfmm2dpart.f
+++ b/src/zfmm2dpart.f
@@ -1,16 +1,8 @@
-cc Copyright (C) 2010-2011: Leslie Greengard and Zydrunas Gimbutas
+cc Copyright (C) 2009-2012: Leslie Greengard and Zydrunas Gimbutas
 cc Contact: greengard@cims.nyu.edu
 cc 
-cc This program is free software; you can redistribute it and/or modify 
-cc it under the terms of the GNU General Public License as published by 
-cc the Free Software Foundation; either version 2 of the License, or 
-cc (at your option) any later version.  This program is distributed in 
-cc the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
-cc even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
-cc PARTICULAR PURPOSE.  See the GNU General Public License for more 
-cc details. You should have received a copy of the GNU General Public 
-cc License along with this program; 
-cc if not, see <http://www.gnu.org/licenses/>.
+cc This software is being released under a modified FreeBSD license
+cc (see COPYING in home directory). 
 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 c
 c    $Date$