@book{Wenzel.2001,
  address = {Lohmar u. a.},
  author = {Wenzel, Olaf},
  interhash = {b8e8309543f6641ed6e5fd75a9fcf490},
  intrahash = {1e619e5203af85fdbed4abd665dbcbca},
  isbn = {3890128718},
  price = {DM 94.00, EUR 49.00, sfr 82.72, S 705.44},
  publisher = {Eul},
  series = {Reihe},
  title = {Webdesign, Informationssuche und Flow:  Nutzerverhalten auf unterschiedlich strukturierten Websites},
  volume = 6,
  year = 2001
}

@book{Hellbusch.2005,
  address = {Heidelberg},
  author = {Hellbusch, Jan Eric and Bühler, Christian},
  edition = {1. Aufl.},
  interhash = {5a1e26369d1e0acf0144420aae5d9a5c},
  intrahash = {778956c3b80b2519ff0a5c83b7fb68b6},
  isbn = {3898642607},
  price = {EUR-D 44.00, EUR-AT 45.30},
  publisher = {dpunkt-Verl.},
  title = {Barrierefreies Webdesign:  Praxishandbuch für Webgestaltung und grafische Programmoberflächen},
  url = {http://www.gbv.de/du/services/toc/bs/39604235x},
  year = 2005
}