@book{21716,
	author = {Ocampo, Hernan, ed. and Paycha, Sylvie, ed.},
	title = {Geometric and Topological Methods for Quantum Field Theory},
	publisher = {Springer Berlin Heidelberg},
	year = {2005},
	series = {Lecture Notes in Physics},
	address = {Heidelberg, Berlin},
	url = {http://doi.org/10.1007/b104936}
}