The Harvest of Medieval Theology: Gabriel Biel and Late Medieval Nominalism
- In-depth review of Heiko Oberman's 1963 book, by Martin Anton Schmidt. [Theology Today]
- http://theologytoday.ptsem.edu/apr1964/v21-1-bookreview2.htm

Catholic Encyclopedia: Gabriel Biel
- Lengthy article on the last of the Scholastics. Biel, the first professor of theology at Tübingen, was a nominalist. He died in 1495.
- http://www.newadvent.org/cathen/02559a.htm