@book{19521,
	author = {Padberg, M.},
	title = {Linear optimization and extensions},
	publisher = {Springer-Verlag,},
	year = {1999},
	series = {Algorithms and Combinatorics },
	address = {Berlin:},
	edition = {2nd rev.},
	note = {"Purchased under NBHM grant for the year 1999-2000"}
}