@book{13975,
	author = {Krein, M. G. and Gohberg, I. ; ed.},
	title = {Topics in differential and integral equations and operator theory},
	publisher = {Birkhauser Verlag},
	year = {1983},
	series = {Operator theory},
	address = {Basel},
	note = {"Tr. from the Russian by A. Iacob".}
}