Tetsuo Asano, Naoki Katoh, Kazuhiro Kawashima. A New Approximation Algorithm for the Capacitated Vehicle Routing Problem on a Tree. In Alok Aggarwal, C. Pandu Rangan, editors, Algorithms and Computation, 10th International Symposium, ISAAC 99, Chennai, India, December 16-18, 1999, Proceedings. Volume 1741 of Lecture Notes in Computer Science, pages 317-326, Springer, 1999. [doi]
Abstract is missing.