Roscelin, John
Links
Biography.com: Roscellinus, Johannes
http://search.biography.com/print_record.pl?id=11947
Four sentences about his life.
Columbia Encyclopedia: Roscelin
http://www.bartleby.com/65/ro/Roscelin.html
Concise entry from the 2001 edition.
Catholic Encyclopedia: Roscelin
http://www.newadvent.org/cathen/13189c.htm
Article by M. de Wulf on this scholar, his teachings, and his tritheistic heresy.
History of Philosophy: Roscelin
http://www.nd.edu/Departments/Maritain/etext/hop29.htm
Short footnoted article on this medieval thinker and his place in history, summarizing four points of his doctrine.