User Modeling and User-Adapted Interaction
User Modeling and User-Adapted Interaction > 2008 > 18 > 1-2 > 175-206
User Modeling and User-Adapted Interaction > 2008 > 18 > 5 > 497-538
User Modeling and User-Adapted Interaction > 2009 > 19 > 5 > 433-486