@book{36680,
	author = {Ahmad, Shair. and ebrary, Inc.},
	title = {Lotka-Volterra and related systems},
	publisher = {De Gruyter,},
	year = {c2013.},
	series = {De Gruyter series in mathematics and life sciences,},
	address = {Berlin ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10729091}
}