@article {BBBK2004,
	title = {Queues with workload dependent arrival and service rates},
	journal = {Queueing Systems: Theory and Applications},
	volume = {46},
	year = {2004},
	pages = {537-556},
	author = {Bekker, R. and Borst, S. C. and Boxma, O. J. and Kella, O.}
}
