@book{27136,
	author = {Verhulst, Ferdinand},
	title = {Methods and applications of singular perturbations },
	publisher = {Springer Science+Business Media, Inc.},
	year = {2005},
	series = {Texts in applied Mathematics },
	address = {New York},
	note = {"Purchased under NBHM grant for the year 2005-2006"}
}