1. AppArmor project wiki,
http://wiki.apparmor.net/index.php/Main_Page
2. Cellrox project,
http://www.cellrox.com/
3. Cgroups,
https://www.kernel.org/doc/Documentation/cgroups/cgroups.txt
4. iCore project page,
http://icoresoftware.com/
5. Linux Containers mailing list,
http://lists.linuxfoundation.org/pipermail/containers/2013-September/033466.html