Ramon Lull

http://www.luc.edu/publications/medieval/vol3/3ch10.html
http://www.theol.uni-freiburg.de/ab/qut.htm
http://thing.at/ejournal/litprim/lull.html
http://www.hottopos.com/convenit5/09.htm
http://www.astronomy.ohio-state.edu/~jordi/llulltra.html
http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Llull.html
http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Llull.html
http://www.hottopos.com.br/rih2pII/jaulent.htm
http://www.geocities.com/Athens/Forum/5284/
http://www.cccbxaman.org/Raval/e4a6/pane2.htm
http://www-mat.upc.es/grup_de_grafs/logo/llull_bio.htm
http://orbita.bib.ub.es/ramon/
http://www.geocities.com/Athens/Forum/5284/estevcat.html
http://www.geocities.com/Athens/Forum/5284/compbon.html