3 links
Bessarion. In calumniatorem Platonis libri quatuor (1503).
lib.byu.edu
A brief biography of Bessarion, and a picture of this book which Bessarion wrote in an effort to reconcile classical philosophy with the Christianity of his time.
Johannes Bessarion
newadvent.org
Article from the Catholic Encyclopedia on this 15th-century Byzantine scholar, by U. Benigni.