@article{marenzi20091130social,
  added-at = {2015-03-16T22:56:05.000+0100},
  author = {Marenzi, Ivana and Zerr, Sergej and Abel, Fabian and Nejdl, Wolfgang},
  biburl = {https://www.bibsonomy.org/bibtex/2d1331fc1fe199eeb7253614eb75bfa0f/zerr},
  interhash = {b2b30b368ff4d878ff4b27dbeaca5de8},
  intrahash = {d1331fc1fe199eeb7253614eb75bfa0f},
  journal = {International Journal of Continuing Engineering Education and Life-Long Learning (IJCEELL)},
  keywords = {dblp journal learnweb myown},
  number = {4/5/6},
  pages = {276-290},
  timestamp = {2015-03-16T22:56:05.000+0100},
  title = {Social Sharing in LearnWeb2.0},
  volume = 19,
  year = 2009
}

@article{marenzi20091130social,
  added-at = {2012-12-11T11:44:32.000+0100},
  author = {Marenzi, Ivana and Zerr, Sergej and Abel, Fabian and Nejdl, Wolfgang},
  biburl = {https://www.bibsonomy.org/bibtex/2d1331fc1fe199eeb7253614eb75bfa0f/marenzi},
  interhash = {b2b30b368ff4d878ff4b27dbeaca5de8},
  intrahash = {d1331fc1fe199eeb7253614eb75bfa0f},
  journal = {International Journal of Continuing Engineering Education and Life-Long Learning (IJCEELL)},
  keywords = {LearnWeb2.0 myown sysrelevantforl3s},
  number = {4/5/6},
  pages = {276-290},
  timestamp = {2014-01-07T15:03:20.000+0100},
  title = {Social Sharing in LearnWeb2.0},
  volume = 19,
  year = 2009
}

@article{learnWeb/system/journal/2009,
  added-at = {2010-12-19T23:00:40.000+0100},
  author = {Marenzi, Ivana and Zerr, Sergej and Abel, Fabian and Nejdl, Wolfgang},
  biburl = {https://www.bibsonomy.org/bibtex/2d1331fc1fe199eeb7253614eb75bfa0f/fabianabel},
  ee = {http://inderscience.metapress.com/link.asp?id=v38240581x10575h},
  interhash = {b2b30b368ff4d878ff4b27dbeaca5de8},
  intrahash = {d1331fc1fe199eeb7253614eb75bfa0f},
  journal = {International Journal of Continuing Engineering Education and Life-Long Learning (IJCEELL)},
  keywords = {elearning, groupme, learnweb resource sharing,},
  number = {4/5/6},
  pages = {276--290},
  timestamp = {2010-12-19T23:18:46.000+0100},
  title = {{Social Sharing in LearnWeb2.0}},
  volume = 19,
  year = 2009
}