Jean Buridan: Article from the Catholic Encyclopedia.
John Buridan: Life and work of this late Medieval philosopher; from the Stanford Encyclopedia by Jack Zupko.
John Buridan on the Acquisition of Simple Substantial Concepts: A paper by Gyula Klima. Focuses on how Buridan's Aristotelianism helped him to maintain an empiricist standpoint without sliding into skepticism.
The Summulae of John Buridan: A critical introduction by Gyula Klima to Buridan's main work in logic.