Bauer K W DIfferential operators for partial differential equations equations and function theoretic applications Bauer K W; Ruscheweyh S - Berlin Springer-verlag 1980 - v, 258p. cm. - Lecture notes in mathematics; 791 . Standard No.: 39274 Source: Textual Subjects--Topical Terms: Ordinary differential equationsMathematics Dewey Class. No.: B331, M0