@book{Kempa.2002,
  address = {Düsseldorf},
  author = {Kempa, Sonja},
  interhash = {0e65e5bb590503a27f02c3968b55fcc4},
  intrahash = {c5c4dcdbe947d10b71452c3aaf52cc73},
  isbn = {3831136769},
  price = {EUR 25.00},
  publisher = {S. Kempa},
  title = {Qualität von Online-Fachinformation},
  url = {http://www.gbv.de/dms/hebis-darmstadt/toc/104165510.pdf},
  year = 2002
}

@book{Hehl.2001,
  address = {München},
  author = {Hehl, H.},
  interhash = {114d024f9806f1fb12f52ef8f40d27c8},
  intrahash = {5dca0aaa9278b877586d615598ce0c6f},
  isbn = {3598114966},
  publisher = {Saur},
  title = {Die elektronische Bibliothek. Literatur- und Informationsbeschaffung im Internet. 2., überarb. und erw. Aufl.},
  year = 2001
}