@book{33198,
	author = {Holmes, Mark H.},
	title = {Introduction to perturbation methods},
	publisher = {Springer,},
	year = {c2013.},
	series = {Texts in applied mathematics,},
	address = {New York :},
	edition = {2nd ed.},
	url = {http://www.columbia.edu/cgi-bin/cul/resolve?clio10311034}
}