1. Lecture Notes in Computer Science;O. Rossi-Doria,2003
2. Kostuch, P.: University Course Timetabling, Transfer Thesis, Oxford University, England (2003)
3. Stützle, T., Hoos, H.H.: MAX-MIN Ant System. Future Generation Computer Systems 16, 889–914 (2000)
4. Socha, K.: MAX-MIN Ant System for International Timetabling Competition. Technical Report TR/IRIDIA/2003-30, Université Libre de Bruxelles, Belgium (2003)
5. Dorigo, M., Di Caro, G.: The Ant Colony Optimization meta-heuristic. In: Corne, D., Dorigo, M., Glover, F. (eds.) New Ideas in Optimization, McGraw-Hill, New York (1999)