The increased focus on heuristics for the approximate solution of integer programs has led to more sophisticated analysis methods for studying their performance. This paper is concerned with the worst ...

G. Ioannou, M. Kritikos, G. Prastacos, A Greedy Look-Ahead Heuristic for the Vehicle Routing Problem with Time Windows, The Journal of the Operational Research Society, Vol. 52, No. 5 (May, 2001), pp.