-[4] http://www.fsfla.org/pipermail/linux-libre/2010-April/001133.html
-[5] http://www.fsfla.org/pipermail/linux-libre/2009-May/000644.html
-[6] https://commons.wikimedia.org/wiki/File:Freedo_con_GNU.svg
-[7] https://www.gnu.org/graphics/heckert_gnu.en.html
-[8] http://www.fsfla.org/ikiwiki/selibre/linux-libre/
\ No newline at end of file
+[4] http://www.fsfla.org/pipermail/linux-libre/2009-December/000923.html
+[5] http://www.fsfla.org/pipermail/linux-libre/2010-April/001133.html
+[6] http://www.fsfla.org/pipermail/linux-libre/2009-April/000533.html
+[7] http://www.fsfla.org/pipermail/linux-libre/2009-May/000621.html
+[8] http://www.fsfla.org/pipermail/linux-libre/2009-May/000644.html
+[9] https://commons.wikimedia.org/wiki/File:Freedo_con_GNU.svg
+[10] https://www.gnu.org/graphics/heckert_gnu.en.html
+[11] http://www.fsfla.org/ikiwiki/selibre/linux-libre/
\ No newline at end of file