@techreport{WaKlW08b, address = {Universit\"at Kassel}, author = {Wagner, R. and Klaus, M.}, institution = {DMCC - Dialog Marketing Competence Center}, interhash = {ad8d44fc046760b61ca60011d7a1a714}, intrahash = {826dba13e4bcb6973db0564882100455}, number = 2, title = {{C}hallenges and {E}xamples of {M}obile {D}irect {M}arketing}, type = {Dahlhoff, D. and Mann, A. and Wagner, R.}, year = 2008 }