@book{20197,
	author = {Gracia-Bondia, Jose M. and Varilly, Joseph C.},
	title = {Elements of noncommutative geometry},
	publisher = {Birkhauser,},
	year = {2001},
	series = {Birkhauser advanced texts},
	address = {Boston:},
	note = {"Purchased under NBHM grant for the year 2000-2001"}
}