@book{Dannenberg.2004,
  address = {Frankfurt Main},
  author = {Dannenberg, Marius and Barthel, Sascha},
  interhash = {6539c826af9ff061f866ae8df0d449ff},
  intrahash = {0679cc0bdf2225c2ccd793e957caa05f},
  isbn = {3478256909},
  price = {EUR 39.90, sfr 69.40},
  publisher = {Redline Wirtschaft bei Verl. Moderne Industrie},
  title = {Effiziente Marktforschung},
  year = 2004
}

@book{Drewes.1996,
  address = {Bergisch-Gladbach},
  author = {Drewes, Guido},
  interhash = {4c1730a093448a295a7cfc83cd8ba96d},
  intrahash = {77caf78bf8bc00a2c8c661cb44535971},
  isbn = {3890124941},
  publisher = {Eul},
  title = {Marketing-Informationssysteme in Banken:  Der Einsatz der Informationstechnologie im operativen Marketing für die breite Privatkundschaft},
  year = 1996
}

@book{Kaiser.1991,
  address = {Bergisch Gladbach},
  author = {Kaiser, Ulrike},
  interhash = {069daf7815983c7ec41a9256eb77c6e6},
  intrahash = {77a812fcb1e626ad9e6dd976b77dfc3d},
  isbn = {3890122639},
  publisher = {Eul},
  series = {Reihe},
  title = {Empirische Bestimmung von Produktwahrnehmung und Idealvorstellung aus globaler Befragung:  Ein Ansatz zur Operationalisierung von Entfaltungsanalysen},
  volume = 33,
  year = 1991
}

@book{Markgraf.2001,
  address = {Lohmar},
  author = {Markgraf, Ingo},
  interhash = {13989c7c7c7cb3e0315fd3329101a2cc},
  intrahash = {e92cdd1a36e3499ac81316cb857d8c1d},
  isbn = {3890129064},
  price = {EUR 45.00, sfr 77.44},
  publisher = {Eul},
  series = {Telekommunikation Medienwirtschaft},
  title = {Hörfunkforschung im internationalen Vergleich},
  volume = 12,
  year = 2001
}