@proceedings{Johannsen.1993,,
  title = {Proceedings of the XII. European Annual Conference on Human Decision Making and Manual Control: Held at the University of Kassel Kassel Germany June 22 - 24 1993: 22,-24, Juni 1993},
  publisher = {University of Kassel},
  year = {1993},
  volume = {12 (Kassel)}
}

@proceedings{Borys.1997c,,
  title = {Proceedings of the XVI. European Annual Conference on Human Decision Making and Manual Control},
  year = {1997},
  volume = {19},
  url = {http://www.imat.maschinenbau.uni-kassel.de/eam/index.html}
}

@book{Johannsen.1989,
  author = {Johannsen, Gunnar and Borys, Bernd-Burkhard and Sundström, G. A. and Fejes, Lajos and Strätz, Gerd},
  title = {Issues of Design Support and User Modelling for Intelligent Graphical Editors, and Presentation System: ESPRIT-Gradient-P857 Report WP4+11-UKS-055},
  year = {1989},
  volume = {MMS-8}
}

@book{Johannsen.1989,
  author = {Johannsen, Gunnar and Borys, Bernd-Burkhard and Sundström, G. A. and Fejes, Lajos and Strätz, Gerd},
  title = {Issues of Design Support and User Modelling for Intelligent Graphical Editors, and Presentation System: ESPRIT-Gradient-P857 Report WP4+11-UKS-055},
  year = {1989},
  volume = {MMS-8}
}