@Inproceedings{kipp2012collaboration,
  author = {Kipp, P. and Bretschneider, U.},
  title  = {Collaboration Engineering to Improve the Idea Quality in Ideas Communities},

  year   = {2012},
  number = {},
  url    = {http://pubs.wi-kassel.de/wp-content/uploads/2013/03/JML_397.pdf},

  const  = {\ text}
}