TY - BOOK AU - Boob-Bavnbek, Bernhelm and Wojciechowski, Krzysztof P. AU - Wojciechowski, Krzysztof P. ; jt. auth. TI - Elliptic boundary problems for dirac operators T2 - Mathematics U1 - 515.35 PY - 1993/// CY - Boston PB - Birkhauser ER -