@inbook{harris_young_2005, title={Proactive mediation in plan-based narrative environments}, volume={3661}, ISBN={3540287388}, booktitle={Intelligent Virtual Agents: 5th International Working Conference, IVA 2005, Kos, Greece, September 12-14, 2005: Proceedings}, publisher={New York: Springer}, author={Harris, J. and Young, R. M.}, year={2005}, pages={292–304} }