@book{10748,
	author = {Heyman, Daniel P. and Sobel, Matthew J.},
	title = {Stochastic Models in Operations Research: vol. I },
	publisher = {Dover Publications,},
	year = {1990.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0486432599/chopaconline-20}
}