The system of optimization tourism routes based on modification of generic and ant algorithms Journal title: Vìsnik Nacìonalʹnogo unìversitetu "Lʹvìvsʹka polìtehnìka". Serìâ Ìnformacìjnì sistemi ta merežì Authors: Vasyl Lytvyn, D. Ugryn, O. Illyuk, S. Bilous, Zoriana Rybchak Subject(s):