The PN Junction. Developed under Teaching Innovation Project 11-293 of Universidad de Granada (Spain)\r<br>Creative Commons By-NonCommercial-NonDerivs.\r<br>English version.\r<br>All the themes in the soundtrack were released under Creative Commons licenses by their respective authors.\r<br>Soundtrack:\r<br>\r<br>\r<br>kammerer.jamendo.net\r<br>\r<br>music.tunguskagrooves.com
