1. Columbia University Rare Book & Manuscript Library, MS X893.15 D932 DS ID: DS19275 Title: Responsa Author: Simeon ben Zemah Duran Place: undetermined Date: 14--
2. Columbia University Rare Book & Manuscript Library, MS X893.15 D93 DS ID: DS19377 Title: Hebrew texts Author: Simeon ben Zemah Duran Place: undetermined Date: d 1713.