@book{BaezaYates.2008,
  address = {Harlow},
  author = {Baeza-Yates, Ricardo and Ribeiro-Neto, Berthier},
  edition = {[Nachdr.]},
  interhash = {409e2fa18c7951bece5b285f8b16b23d},
  intrahash = {379d8fc3a6be2cb15d08a91e87132fbc},
  isbn = {0201398298},
  publisher = {Pearson Addison-Wesley [u.a.]},
  title = {Modern information retrieval},
  year = 2008
}

@book{Paffhausen.1984,
  address = {Bergisch Gladbach},
  author = {Paffhausen, Andreas},
  edition = {1. Aufl.},
  interhash = {20505842c2d53e3bd581fcbdc5573b0a},
  intrahash = {cc02b5b397fd1171fd6fe962450bee25},
  isbn = {3890120148},
  price = {DM45.00},
  publisher = {J. Eul},
  series = {Reihe Planung, Information und Unternehmungsführung},
  title = {Grundlagen eines Informationssystems für die langfristige Absatzführung in mittelständischen Betrieben der Konsumgüterindustrie},
  volume = {Bd. 4},
  year = 1984
}