000 00282nam a2200109Ia 4500
008 250217s9999 xx 000 0 und d
022 _a45411
082 _a004.05
_bJOU
245 0 _aJournal of the ACM
260 _bThe Association for Computing Machinery
_aNew York
942 _cPRBP
999 _c188165
_d188164