@inproceedings{DBLP:conf/nordichi/RatzerH02,
  author    = {Anne V. Ratzer and
               Klaus Marius Hansen},
  title     = {Ideogramic: flexibility and formality in collaborative diagramming},
  booktitle = {NordiCHI},
  year      = {2002},
  pages     = {291-292},
  ee        = {http://doi.acm.org/10.1145/572020.572069},
  crossref  = {DBLP:conf/nordichi/2002},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/nordichi/2002,
  editor    = {Olav W. Bertelsen},
  title     = {Proceedings of the Second Nordic Conference on Human-Computer
               Interaction 2002, Aarhus, Denmark, October 19-23, 2002},
  booktitle = {NordiCHI},
  publisher = {ACM},
  year      = {2002},
  isbn      = {1-58113-616-1},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}