@inproceedings{Nagel:2001,
  author = {Henrik Rojas Nagel and Erik Granum and Peter Musaeus},
  title  = {Methods for Visual Mining of Data in Virtual Reality},
  booktitle = {Proceedings of the International Workshop on Visual Data Mining,
    in conjunction with ECML/PKDD2001},
  organization = {2nd European Conference on Machine Learning and 5th European
    Conference on Principles and Practice of Knowledge Discovery in Databases},
  address = {Freiburg, Germany},
  month   = {September},
  year    = 2001
}

@inproceedings{Nagel:2002,
  author = {Henrik Rojas Nagel and Erik Granum},
  title  = {A Software System for Temporal Data Visualization in Virtual Reality},
  booktitle = {Proceedings of the Workshop on Data Visualization for large data sets and Data Mining},
  organization = {Department of Computer Oriented Statistics and Data Analysis University of Augsburg},
  address = {Augsburg, Germany},
  month   = {October},
  year    = 2002
}