1. University of Pennsylvania, Ms. Codex 1083 DS ID: DS900 Title: Reductorium morale Author: Pierre Bersuire Place: Avignon Date: 1405.
2. Harvard University, MS Typ 292 DS ID: DS11155 Title: Libellus naturalium exemplorum de fide contra vanos et curiosos philosophos Author: Pierre Bersuire Date: 1444.