00338nam a2200145Ia 450000500170000000800410001704000120005808200120007008200080008210000190009024500370010926000220014626000090016865000150017720240715130418.0230706s9999    xx            000 0 und d  cPearson  a658.872  bKAL  aKalakota, Ravi 0aFrontiers of Electronic Commerce  bPearson Publisher  c2013  aManagement