| Ockham and Ockhamists : Acts of the Symposium Organized by the Dutch Society for Medieval Philosophy 'Medium Aevum' on the Occasion of Its 10th Anniversary (Leiden, 10-12 September 1986) |
| Ockham and Ockhamists : Acts of the Symposium Organized by the Dutch Society for Medieval Philosophy 'Medium Aevum' on the Occasion of Its 10th Anniversary (Leiden, 10-12 September 1986) |