%0 Book Section %B Intelligent Interactive Systems in Knowledge-Based Environments %D 2008 %T On Developing and Communicating User Models for Distance Learning Based on Assignment and Exam Data %A Hadzilacos, Thanasis %A Kalles, Dimitris %A Christos J. Pierrakeas %B Intelligent Interactive Systems in Knowledge-Based Environments %I Springer %P 137–155 %G eng