http://www.mos.org/leonardo/

http://www.mos.org/sln/Leonardo/LeoHomePage.html

http://www.visi.com/~reuteler/leonardo.html

http://library.thinkquest.org/3044/

http://www.pharo.com/history/turin_shroud/articles/mhts_12_faking_the_shroud.asp

http://www.artchive.com/artchive/L/leonardo.html

http://fusionanomaly.net/leonardodavinci.html

http://abcnews.go.com/sections/World/Primetime/davinci031103-1.html