@inproceedings { lim09, booktitle = {Agents for Games and Simulations, Trends in Techniques, Concepts and Design - AGS 2009 }, pages = {107-118}, publisher = {Springer}, title = {Intelligent NPCs for educational role play game}, volume = {5920}, year = {2009}, author = {Mei Yii Lim and João Miguel Assis Dias and Ruth Aylett and Ana Paiva} }