Stephen G. Ware Brent E. Harrison R. Michael Young David L. Roberts Initial Results for Measuring Four Dimensions of Narrative Conflict. 2011 Intelligent Narrative Technologies http://aaai.org/ocs/index.php/AIIDE/AIIDE11WS/paper/view/4099 conf/aiide/2011narrative db/conf/aiide/narrative2011.html#WareHYR11