Johannsen, G., Borys, B.-B., Sundström, G. A., Fejes, L.,, Strätz, G. (1989).
Issues of Design Support and User Modelling for Intelligent Graphical Editors, and Presentation System: ESPRIT-Gradient-P857 Report WP4+11-UKS-055
(Vol. MMS-8). Kassel: