TY  - BOOK
AU  - Martins, J. P., ed.
AU  - Morgado, E. M., ed.
AU  - Portuguese Conference on artificial intelligence ( Lisbon : 1989 )
TI  - EPIA '89
T2  - Lecture notes in artificial intelligence
SN  - 3500516654
U1  - 006.3 
PY  - 1989///
CY  - Berlin
PB  - S-V
ER  -