@book{20931,
	author = {Petras, Ivo },
	title = {Fractional-Order Nonlinear Systems},
	publisher = {Springer Berlin Heidelberg},
	year = {2011},
	series = {Nonlinear Physical Science},
	address = {Heidelberg, Berlin},
	url = {http://doi.org/10.1007/978-3-642-18101-6}
}