Fiorella de Rosis M. T. Cozza Berardina De Carolis S. Errore Sebastiano Pizzutilo I. de Zegher Adaptive Interaction with Knowledge-Based Systems. 192-199 1994 Advanced Visual Interfaces http://doi.acm.org/10.1145/192309.192347 db/conf/avi/avi94.html#RosisCCEPZ94