@book{18298,
	author = {Makarets, M. V. and Reshetnyak, V. Yu},
	title = {Ordinary differential equations and calculus of variations :},
	publisher = {World Scientific,},
	year = {1995},
	address = {Singapore ;},
	url = {http://portal.igpublish.com.libraryumpsa.idm.oclc.org/iglibrary/}
}