1. Antes J and Derigs U (1995). A new parallel tour construction algorithm for the vehicle routing problem with time windows. Department of Information Systems and Operations Research, University of Cologne, Cologne, Germany.
2. Cordeau J-F, Desaulniers G, Desrosiers J, Solomon MM, and Soumis F (2002). VRP with time windows. In P. Toth and D. Vigo, editors, The Vehicle Routing Problem, pages 157–193. SIAM Monographs on Discrete Mathematics and Applications, Philadelphia.
3. Les cahiers du GERAD;J.-F. Cordeau,2004
4. Council of the European Communities (1985). Council Regulation (EEC) No 3820/85 of 20 December 1985 on the harmonization of certain social legislation relating to road transport.
5. Feillet D, Dejax P, and Gendreau M (2005). Traveling Salesman Problems with Profits. Transportation Science, 39(2):188–205.