000 00432nam a2200217Ia 4500
008 181205s9999 xx 000 0 und d
100 _eAUTHOR
245 0 _aCommunication of the ACM
245 0 _e24
245 0 _n4
260 _c1981
300 _bPAPER PACK
300 _eHARD BINDING
300 _gNO
365 _b0
365 _b0
365 _d1
520 _aBACKVOLUME
942 _cBACK VOLUME
999 _c89925
_d89925