@article{MaSc01,
	author = {Rudolf Mathar and Michael Schmeink},
	title = "Optimal base station positioning and channel assignment for 3{G} mobile networks by integer programming",
	pages = "225-236",
	journal = "Annals of Operations Research",
	volume = "107",
	year = 2001,
	hsb = {RWTH-CONV-223170},
	}