1. Harry Ransom Center, -q- BX 5145 A2 1549c DS ID: DS12056 Title: Commentary on Sentences Author: Bonaventure Place: England Date: 1275-1400
2. Rochester Institute of Technology, PORTFOLIO BOX 1-7 DS ID: DS16472 Title: Aurora Author: Petrus Riga Place: England Date: ca. 1210-1240