@book{Rohm.2000,
  address = {Lohmar},
  author = {Röhm, Alexander W.},
  interhash = {7bcd24440aef70cbc69460f025726af6},
  intrahash = {04b38972a8b0c297ca243a25e678938e},
  isbn = {3890127681},
  price = {DM 78.00, EUR 39.88, sfr 70.98, S 585.36},
  publisher = {Eul},
  series = {Reihe},
  title = {Sicherheit offener Elektronischer Märkte:  Modellbildung und Realisierungskonzept},
  volume = 4,
  year = 2000
}

@book{Gerloff.2000,
  address = {Lohmar},
  author = {Gerloff, Dorothea},
  interhash = {63ca0232742fb928edbb61ebfe7057f8},
  intrahash = {c6d9876b8592a54683544a66fa027dc6},
  isbn = {3890127924},
  price = {DM 96.00, EUR 49.08, sfr 87.36, S 720.45},
  publisher = {Eul},
  title = {Möglichkeiten, Grenzen und Konsequenzen des Einsatzes elektronischer Geldbörsen},
  year = 2000
}

@book{Pousttchi.2005,
  address = {Wiesbaden},
  author = {Pousttchi, Key},
  edition = {1. Aufl.},
  interhash = {1faefaed5b5efd74fc2628deafc47ded},
  intrahash = {f4dc79ef1820757cb411b1d01a95a765},
  isbn = {382448272x},
  price = {ca. EUR 49.90},
  publisher = {Dt. Univ.-Verl.},
  series = {Gabler Edition Wisenschaft},
  title = {Mobile Payment in Deutschland:  Szenarienübergreifendes Referenzmodell für mobile Bezahlvorgänge},
  year = 2005
}

@book{Cathomen.1996,
  address = {Bergisch-Gladbach},
  author = {Cathomen, Ivo},
  interhash = {bf5a091e2c2cb4853a177188e177b27a},
  intrahash = {3f6e86f02da7064c56bb23e28655a2f1},
  isbn = {3890125166},
  publisher = {Eul},
  title = {Der Lebenszyklus von Interorganisationssystemen},
  year = 1996
}