http://www.luminarium.org/lumina.htm

http://www.aemma.org/onlineResources/liberi/liberiHome.htm

http://www.kismeta.com/diGrasse/

http://www.princeton.edu/~ezb/rene/renehome.html

From Captain David Whitaker, Wayte

Silver's Paradoxes of Defense www.pbm.com/~lindahl/paradoxes.html

www.tattershall.org/resc.html