- Pereira, Luís Moniz (7)
- Dix, J. (Jürgen), 1961- (3)
- Przymusinski, Teodor C., 1947- (3)
- Alferes, José Júlio (2)
- Barahona, P. (Pedro), 1954- (1)
- Gupta, G., 1963- (1)
- International Conference on Logic Programming (1)
- International Workshop LPKR (1)
- JELIA (1)
- NMELP (1)
- Nerode, Anil, 1932- (1)
- Orlowska, Ewa (1)
- Porto, A. (António), 1952- (1)
- Portuguese Conference on Artificial Intelligence (1)