000 00293nas a22000857a 4500
008 170117s9999 xx 000 0 und d
245 _aEC: Electronic Commerce
_h[e-journal]
260 _bAssociation for Computing Machinery
856 _uhttp://dl.acm.org/proceedings/ec/
_yeSS consortium 1999 - 2015
999 _c550445
_d550445