@book{206318,
	author = {Stahl, Saul. and Stenson, Catherine,},
	title = {Introduction to topology and geometry /},
	publisher = {Wiley,},
	year = {2013.},
	series = {Pure and applied mathematics},
	address = {Hoboken, New Jersey :},
	edition = {2nd edition /},
	url = {http://onlinelibrary.wiley.com/book/10.1002/9781118545904}
}