000 00358nam a2200145Ia 4500
008 240618s9999||||xx |||||||||||||| ||und||
020 _aBOUND VOLUME
040 _aMAIN
082 _a317
100 _aBOUND VOLUME
_934441
245 0 _aCOMMUNICATIONS OF THE ACM, VOL.33(1-6),1990
260 _bACM
_c1989
_aNEW YORK
500 _aBOUND VOLUME
942 _cBK
999 _c41418
_d41418