Merge branch 'gh-pages' of https://github.com/gnss-sdr/geniuss-place

_pages/publications.md

@@ -470,7 +470,7 @@ note    = {doi: 10.1007/978-981-15-3715-8}
 Cork, Ireland, 31 Aug. / 3 Sept., 2020. pp. 1-4.
     <br />
     <a href="javascript:toggleBibtex('Calvo20')">[BibTeX]</a>
-    <span style="color: #52adc8">[</span><a href="http://eprints.networks.imdea.org/id/eprint/2139" >Online <i class="ai ai-open-access"> </i></a><span style="color: #52adc8">]</span>
+    <span style="color: #52adc8">[</span><a href="https://faculty.iiitd.ac.in/~arani/assets/pdf/wowmom20.pdf" >Online <i class="ai ai-open-access"> </i></a><span style="color: #52adc8">]</span>
     </p>
     <div id="bib_Calvo20" class="bibtex noshow" style="color: #111111">
     <pre>@inproceedings{ Calvo20,

_posts/2013-02-01-google-summer-code-2013-ideas-list.md

@@ -13,7 +13,7 @@ redirect_from:
   - /node/52
 ---
 
-[Global Navigation Satellite System (GNSS)](https://en.wikipedia.org/wiki/Satellite_navigation) is the general concept used to identify those systems that allow user positioning based on a constellation of satellites. Specific GNSS are the well-known American [GPS](https://www.gps.gov/), the Russian [GLONASS](https://www.glonass-iac.ru/en/), or the forthcoming European [Galileo](https://www.gsc-europa.eu/galileo/what-is-galileo) and Chinese [BeiDou](http://www.beidou.gov.cn/). Governments around the World are spending billions of dollars of tax payers' money in building and maintaining an infrastructure with explicitly free civilian usage. However, users only have access to a small fraction of the full capability of GNSS in terms of accuracy, robustness and reliability of the provided service at a reasonable cost. Professional, full-featured receivers are expensive, and even in those cases the users have limited access (if any) to know exactly how position and time information were computed.
+[Global Navigation Satellite System (GNSS)](https://en.wikipedia.org/wiki/Satellite_navigation) is the general concept used to identify those systems that allow user positioning based on a constellation of satellites. Specific GNSS are the well-known American [GPS](https://www.gps.gov/), the Russian [GLONASS](https://glonass-iac.ru/en/about_glonass/), or the forthcoming European [Galileo](https://www.gsc-europa.eu/galileo/what-is-galileo) and Chinese [BeiDou](http://www.beidou.gov.cn/). Governments around the World are spending billions of dollars of tax payers' money in building and maintaining an infrastructure with explicitly free civilian usage. However, users only have access to a small fraction of the full capability of GNSS in terms of accuracy, robustness and reliability of the provided service at a reasonable cost. Professional, full-featured receivers are expensive, and even in those cases the users have limited access (if any) to know exactly how position and time information were computed.
 
 Some commercial, industrial and scientific applications of GNSS signals and data require non-standard features of the receiver. Access to intermediate signals is not possible in mass-market receivers, and professional equipment is costly and often a ‘black box’ that does not offer exact information about how signals are being processed. Since all the processing is done in [ASICs](https://en.wikipedia.org/wiki/Application-specific_integrated_circuit) or [SoCs](https://en.wikipedia.org/wiki/System_on_a_chip), one cannot change the implementation of a certain functional block and assess the impact of that change on the whole receiver performance.
 

_posts/2016-06-23-using-git.md

@@ -54,7 +54,7 @@ learning curve, but it worth it. A good reference is the freely available [Git
 Pro book](https://git-scm.com/book/en/v2), but there are plenty of good Git
 tutorials out there. If you have never used it, start from the [Git
 Basics](https://git-scm.com/book/en/v2/Getting-Started-Git-Basics) or this [free
-online course](https://lab.github.com/githubtraining/introduction-to-github).
+online course](https://github.com/skills/introduction-to-github).
 
 
 ## Git branches in GNSS-SDR

_posts/2016-07-08-gnss-signals.md

@@ -218,7 +218,7 @@ ascending node. Eight satellites are equally spaced in each plane with $$ 45^o $
 argument of latitude. Moreover, the orbital planes have an argument of latitude
 displacement of $$ 15^o $$ relative to each other. The current constellation
 status can be checked at the Russian [Information and Analysis Center for
-Positioning, Navigation and Timing website](https://www.glonass-iac.ru/en/).
+Positioning, Navigation and Timing website](https://glonass-iac.ru/en/about_glonass/).
 
 The ground control segment of GLONASS is almost entirely located within former
 Soviet Union territory, except for a station in Brasilia, Brazil. The Ground