Pamela Briggs. The role of the user model in learning as an internally and externally directed activity. In David Ackermann, Michael J. Tauber, editors, Mental Models and Human-Computer Interaction 1 [selected papers of the 6th Interdisciplinary Workshop in Informatics and Psychology, Schärding, Austria, June 1987]. pages 195-208, North-Holland, 1987.
Abstract is missing.