@book{934,
	author = {Derrick, William R. and Grossman S., Stanley I.},
	title = {Ecuaciones diferenciales},
	publisher = {Fondo Educativo Interamericano},
	year = {1983},
	address = {México},
	edition = {1a ed.},
	note = {traducción Carmen Samper de Caicedo}
}