@book{156785,
	author = {Damgov, Vladimir. and ebrary, Inc.},
	title = {Nonlinear and parametric phenomena},
	publisher = {World Scientific,},
	year = {c2004.},
	series = {World scientific series on nonlinear science. Series A ;},
	address = {New Jersey ;},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10106570}
}