@book{227925,
	author = {Grattan-Guinness, I. and ebrary, Inc.},
	title = {The search for mathematical roots, 1870-1940},
	publisher = {Princeton University Press,},
	year = {c2000.},
	address = {Princeton, N.J. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10453194}
}