00286nam a2200109Ia 4500008004100000020001800041082001600059100001700075245003600092260003500128300001300163191014s9999    xx            000 0 und d  a0-85274-095-6  a516.36bNAK  aM. Nakahara  0aGeometry, Topology and Physics   aUSAbIOP Publishing Ltd.c1990  aXiii,505