000 00296nam a2200121Ia 4500
008 211209s1971 xx 000 0 und d
041 _aeng
082 _a515.252 N71 HIR/NEU
100 _aHIRZEBRUCH F
245 _aDIFFERENTIABLE MANIFOLDS AND QUADRATIC FORMS
260 _c1971
300 _a120
999 _c13681
_d13681