@book{8529,
	author = {Ross, Sheldon M.},
	title = {Introduction to probability models /},
	publisher = {Academic Press,},
	year = {c2007.},
	address = {Amsterdam ;},
	edition = {9th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0707/2006051040-d.html}
}