| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Epia 91: 5th Portuguese Conference on Artificial Intelligence Albufeira, Portugal, October 1-3, 1991 Proceedings | 978-O-387-54535-6 (O-387-54535-2) | 1991 | Luis Moniz Pereira · P. Barahona · A. Porto |