@Inproceedings{atzmueller2013subgroup,
  author = {Atzmueller, Martin and Mueller, Juergen},
  title  = {Subgroup Analytics and Interactive Assessment on Ubiquitous Data},

  year   = {2013},
  number = {},
  url    = {http://www.kde.cs.uni-kassel.de/ws/muse2013/#proceedings},

  const  = {\ text}
}
@Proceedings{DBLP:conf/esws/2006,

  title  = {The Semantic Web: Research and Applications, 3rd European
               Semantic Web Conference, ESWC 2006, Budva, Montenegro, June
               11-14, 2006, Proceedings},

  year   = {2006},
  number = {},
  url    = {},

  const  = {\ text}
}