000 00282nam a2200097Ia 4500
082 _a658.3 MAR
245 0 _aPractical guide on implementing syggestion systems
100 _a MARX, Andrew E. Kaapstad, 1992
_968813
942 _cBK
008 210817s9999 xx 000 0 und d
999 _c222344
_d222343