@book{hofte98,
  address = {Enschede, The Netherlands},
  author = {Hofte, Henri T.},
  citeulike-article-id = {271773},
  interhash = {42392675e35d5c99e10ea8945ad5e49b},
  intrahash = {b377bcf3c8cbf9ec6fbc54dcc471274a},
  posted-at = {2005-08-02 15:46:57},
  priority = {2},
  publisher = {Telem{\'a}tica Institut},
  title = {Working Apart Together - Foundations For Components Groupware},
  year = 1998
}

@book{Gross.2007,
  address = {München},
  author = {Gross, Tom and Koch, Michael},
  interhash = {cb7f049f757ec7d2a242d7154fff6aab},
  intrahash = {24b76376ef4e68665a5508aeed9b30ad},
  isbn = {9783486580006},
  price = {EUR 29.80},
  publisher = {Oldenbourg},
  series = {Interaktive Medien},
  title = {Computer-Supported Cooperative Work},
  url = {http://www.gbv.de/dms/ilmenau/toc/516033204.PDF},
  year = 2007
}