@book{228628,
	author = {Izadi, F. A. and Aliev, N. and ebrary, Inc.},
	title = {Discrete calculus by analogy},
	publisher = {Bentham Books,},
	year = {2009.},
	address = {[Sharjah, United Arab Emirates] :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10492619}
}