@inproceedings{gonzalez02semantic,
  author = {Gonzalez-Olalla, J. and Stumme, G.},
  title = {Semantic Methods and Tools for Information Portals - The SemIPort Project (Project Description)},
  booktitle = {Semantic Web Mining. Proc. of the Semantic Web Mining Workshop of the 13th Europ. Conf.},
  year = {2002},
  pages = {90},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2002/gonzalez2002semantic.pdf}
}

@inproceedings{hartmann02semanticweb,
  author = {Hartmann, J. and Hotho, A. and Stumme, G.},
  title = {Semantic Web Mining for Building Information Portals (Position Paper)},
  booktitle = {Proc. Arbeitskreistreffen Knowledge Discovery},
  year = {2002},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2002/hartmann2002semanticweb.pdf}
}