@book{vanBerg.1992,
  address = {Bergisch Gladbach},
  author = {den van Berg, Klaus},
  interhash = {2ce76ff333ca99c17885f8c7beb5c048},
  intrahash = {2636f5dcc49b8adf9cd4e07ee6f2cea4},
  isbn = {3890122701},
  publisher = {Eul},
  series = {Reihe},
  title = {Empirische und theoretische Grundlagen der Arbeitskräftehortung},
  volume = 35,
  year = 1992
}

@book{Fink.2005,
  address = {Heidelberg},
  author = {Fink, Andreas and Schneidereit, Gabriele and Voß, Stefan},
  edition = {2., überarb. Aufl.},
  interhash = {7b8038b89f80c7e3d9e3c01399053fb8},
  intrahash = {b767ac611379c365a327ec60b06503c9},
  isbn = {3790813753},
  publisher = {Physica-Verl.},
  series = {Physica-Lehrbuch},
  title = {Grundlagen der Wirtschaftsinformatik},
  url = {http://www.gbv.de/dms/hebis-mainz/toc/123890934.pdf},
  year = 2005
}

@book{Roth.2002,
  address = {Heidelberg},
  author = {Roth, Jörg},
  edition = {1. Aufl.},
  interhash = {e4fad3b9d6999efb255b5aaa7518cab6},
  intrahash = {6834ac6638b8670151155380ce05d535},
  isbn = {3898641651},
  price = {EUR 49.00 (DE)},
  publisher = {dpunkt-Verl.},
  title = {Mobile computing:  Grundlagen, Technik, Konzepte},
  url = {http://www.gbv.de/dms/hebis-darmstadt/toc/104390921.pdf},
  year = 2002
}

@book{Turowski.2004,
  address = {Berlin /// Berlin , Heidelberg , New York , Hongkong , London , Mailand , Paris , Tokio},
  author = {Turowski, Klaus and Pousttchi, Key},
  interhash = {a0496e0813bf97ed0f8fe884e6a87e69},
  intrahash = {c1c55d188a615cf2873caf6f63de4455},
  isbn = {3540005358},
  publisher = {Springer},
  title = {Mobile Commerce /// Mobile commerce:  Grundlagen und Techniken ; mit 9 Tabellen /// Grundlagen und Technikenmit 9 Tabellen},
  url = {http://www.gbv.de/dms/hebis-mainz/toc/111977533.pdf},
  year = 2004
}

@book{Schwarze.2002,
  address = {Herne},
  author = {Schwarze, Jochen and Schwarze, Stephan and Hoppe, Gabriela},
  interhash = {e58feb3c9f3c87284d8aa314961d658b},
  intrahash = {10e1204dbe0b71986e82ab2e4cc5c8bb},
  isbn = {3482514216},
  price = {EUR 29.80, sfr 52.00},
  publisher = {Verl. Neue Wirtschafts-Briefe},
  series = {NWB-Studienbücher Wirtschaftsinformatik},
  title = {Electronic commerce:  Grundlagen und praktische Umsetzung},
  year = 2002
}