1. A design technique for the layout of Multi-product flow lines;Aneke;International Journal of Production Research,1986
2. Layout of Multi-product lines;Carrie;International Journal of Production Research,1975
3. Ant colonies for the traveling salesman problem;Dorigo;Biosystems,1997
4. Dorigo, M., Maniezzo, V. and Colorni A. (1991). Positive feedback as a search strategy. Technical report 91–016, Dipartimento di Electronica, Politecnico di Milano, Milan.
5. Machine layout problem in flexible manufacturing systems;Heragu;Operations Research,1998