000 00299nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aCommunications of the ACM [43(1)2000]
260 _aAssociation for Computing Machinery
_bNewyork
_c1 Feb-30 Apr,2000
362 _a43-43
_b02-Apr
942 _2ddc
_cJ
999 _c184404
_d184404