000 00288nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aCommunications of the ACM
260 _aAssociation for Computing Machinery
_bNew York
_c1 Sep-31 Dec,1997
362 _a40-40
_b09-Dec
942 _2ddc
_cJ
999 _c188005
_d188005