Scientific American, July 2004, by Gordon Rugg
www.keele.ac.uk/depts/cs/staff/g.rugg/voynich/
www.voynich.nu/
www.dcc.unicamp.br/~stolfi/voynich/
mysite.freeserve.com/philipneal_vms
http://math.ucr.edu/home/baez/voynich.html voynich1.jpg