http://www.classical.net/music/comp.lst/ockeghem.html Classical Net: Ockeghem Brief biography and discography. http://www.medieval.org/emfaq/composers/ockeghem.html Johannes Ockeghem Brief biography, list of works with discography. (by Pierre-F. Roberge) http://carolinanavy.com/fleet2/f2/zclassicalmusic/JohannesOckeghem(chall/shakespeare1.html Johannes Ockeghem (c. 1410-1497) Message board and chat. http://library.ferris.edu/scott/ockeghem.html Johannes Ockeghem Home Page Brief biography; extensive scholarly bibliography; list of works; research sources. http://metalab.unc.edu/expo/vatican.exhibit/exhibit/e-music/Music_room2.html Library of Congress: Vatican Exhibit: Music room two Contains photo of illustrated manuscript with music by Ockeghem.