000 00330nam a2200145Ia 4500
008 240618s9999||||xx |||||||||||||| ||und||
020 _aNCST
040 _aMAIN
082 _a317
100 _aBOUND VOLUME
_937039
245 0 _aCOMMUNICATIONS OF THE ACM, VOL.26(7-12),1983
250 _a1
260 _bACM
_c1983
942 _cBK
999 _c43891
_d43891