For reading later: * "GNU General Public License v3.0":http://www.gnu.org/copyleft/gpl.html * "A Quick Guide to GPLv3":http://www.gnu.org/licenses/quick-guide-gplv3.html * "How to choose a license for your own work":http://www.gnu.org/licenses/license-recommendations.html * "Releasing Free Software If You Work at a University":http://www.gnu.org/philosophy/university.html