@inbook{MaHe99,
	author = {Rudolf Mathar and Martin Hellebrandt},
	title = "Mobility modeling in cellular radio networks, product form solutions and blocking",
	pages = "253-261",
	volume = "3",
	publisher = "Kluwer",
	series = "Multiaccess, Mobility and Teletraffic for wireless communications",
	editor = "K. Leung, B. Vojcic",
	address = "Boston",
	year = 1999,
	hsb = {RWTH-CONV-223637},
	}