| Synoptical Presentation of Digitized Manuscripts: | |
| Biblioteca Apostolica Vaticana - Bibliotheca Palatina Codices | |
| Philosophia I II III IV | |
| Bibliothèque nationale de France Codices | |
| Philosophia I II III IV | |
| Lawrence J. Schoenberg Collection Manuscript server does not allow to show manuscript in a frame Codices | |
| Philosophia I II III IV | |
| Universiteit Leiden Codices | |
| Philosophia I II III IV | |
| Edition Used | ||
| Philosophia | G. Maurach, Pretoria, 1980 |