@book{Simon.2001,
  address = {Lohmar},
  author = {Simon, Bernd},
  interhash = {99fbddf5e4711a6a405e4c3031ea5319},
  intrahash = {14f3604395b451019c1f82d9fee5d57e},
  isbn = {3890128866},
  price = {DM 76.00, EUR 39.00 (ab 1.1.2002)},
  publisher = {Eul},
  series = {Reihe},
  title = {E-Learning an Hochschulen:  Gestaltungsräume und Erfolgsfaktoren von Wissensmedien},
  volume = 1,
  year = 2001
}

@book{Kerres.2001,
  address = {München},
  author = {Kerres, Michael},
  edition = {2., vollst. überarb. Aufl.},
  interhash = {7c7ea3cacf6499d37e182ebd4a9b4278},
  intrahash = {f3808bb69efdfe79021ca0a5e9a73412},
  isbn = {3486250558},
  price = {EUR 39,80},
  publisher = {Oldenbourg},
  title = {Multimediale und telemediale Lernumgebungen:  Konzeption und Entwicklung},
  url = {http://www.gbv.de/dms/hebis-darmstadt/toc/94894817.pdf},
  year = 2001
}