Booss-Bavnbek Bernhelm Elliptic boundary problems for Dirac operators - Boston Birkhauser 1993 - 307p - Mathematics: theory and applications . ISBN: 0817636811 (Boston:hbd) Standard No.: 3240 Source: Narosa, Textual Subjects--Topical Terms: Differential equations PartialMathematics Dewey Class. No.: B334, N3