@book{2001,
	author = {Hillier, Frederick S.},
	title = {Introduction to Operations Research /},
	publisher = {McGraw Hill Higher Education,},
	year = {2000.},
	address = {[S.l.] :},
	edition = {7th edition.},
	url = {http://10.10.170.122:8080/browse/book/5453}
}