MaTourA: Multi-agent Tourist Advisor. - Constantin Halatsis; Panagiotis Stamatopoulos; Isambo Karali; Costantinos Mourlas; Dimitris Gouscos; Dimitris Margaritis; Constantin Fouskakis; Angelos Kolokouris; Panagiotis Xinos; Mike Reeve; André Véron; Kees Schuerman; et al. (ENTER, 1994)