MarttunenL04'

@inproceedings{DBLP:conf/iadis/MarttunenL04,
  author    = {Miika Marttunen and
               Leena Laurinen},
  title     = {Experiences of the Use of Argumentation Visualisation in
               Secondary Schools},
  booktitle = {CELDA},
  year      = {2004},
  pages     = {99-106},
  crossref  = {DBLP:conf/iadis/2004celda},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/iadis/2004celda,
  editor    = {Kinshuk and
               Demetrios G. Sampson and
               Pedro T. Isa\'{\i}as},
  title     = {Cognition and Exploratory Learning in Digital Age (CELDA'04),
               Proceedings of the IADIS International Conference, Lisbon,
               Portugal, 15-17 December 2004},
  booktitle = {CELDA},
  publisher = {IADIS},
  year      = {2004},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}