http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Linear differential equations in Banach space
by S. G. Krein. [Translated from the Russian by J. M. Ganskin].
Translation of Lineinye differentsialnye uraveniia v banakhovom prostranstve.
Translations of mathematical monographs ; v. 29