@inbook {lapalme88general,
	title = {A General Heuristic for Node Routing Problems},
	booktitle = {Advances in Optimization and Control, Lecture Notes in Economic and Mathematical Systems, no 302},
	year = {1988},
	pages = {124-143},
	publisher = {Springer-Verlag},
	organization = {Springer-Verlag},
	address = {Montr{\'e}al},
	author = {Guy Lapalme and Potvin, J.-Y. and Rousseau, J.-M.},
	editor = {H.A. Eiselt and G. Pederzoli}
}
