000 00279nam a2200097Ia 4500
008 120224s9999 xx 000 0 und d
082 _a512.55
_bROT
100 _aRotman, Joseph J.
245 _aIntroduction to homological algebra
260 _bAcademic Press
_aSan Diego
_c1979
999 _c111778
_d111778