@book{14105,
	author = {Baccelli, Francois and Bremaud, Pierre and Bremaud, Pierre ; jt. auth.},
	title = {Elements of queuing thoery; palm-martingale calculus and stochastic recurrences},
	publisher = {Springer-Verlag},
	year = {1994},
	series = {Applications of Mathematics },
	address = {Berlin}
}