• J. De Vinck and R.J. Karris (trans.), Works of Saint Bonaventure, volume 15: Defense of the Mendicants (Saint Bonaventure NY: 2010).

• D. Burr, Olivi and Franciscan Poverty: the Origins of the Usus Pauper Controversy (Philadelphia: 1989)

• J.V. Fleming, An Introduction to the Franciscan Literature of the Middle Ages (Chicago: 1977).

• K.L. Hughes, “Bonaventure’s Defense of Mendicancy,” in J.M. Hammond, J.A. Wayne Hellmann, and J. Goff (eds), A Companion to Bonaventure (Leiden: 2014), 509-42.

• M.D. Lambert, Franciscan Poverty: the Doctrine of the Absolute Poverty of Christ and the Apostles in the Franciscan Order 1210-1323 (London: 1961).

• V. Mäkinen, Property Rights in the Late Medieval Discussion on Franciscan Poverty (Leuven: 2001).