Sven Oliver Krumke, Sleman Saliba, Tjark Vredeveld, Stephan Westphal. Approximation algorithms for a vehicle routing problem. Math. Meth. of OR, 68(2):333-359, 2008. [doi]
@article{KrumkeSVW08,
title = {Approximation algorithms for a vehicle routing problem},
author = {Sven Oliver Krumke and Sleman Saliba and Tjark Vredeveld and Stephan Westphal},
year = {2008},
doi = {10.1007/s00186-008-0224-y},
url = {http://dx.doi.org/10.1007/s00186-008-0224-y},
researchr = {https://researchr.org/publication/KrumkeSVW08},
cites = {0},
citedby = {0},
journal = {Math. Meth. of OR},
volume = {68},
number = {2},
pages = {333-359},
}