Sylvie Girard Lishan Zhang Yoalli Hidalgo-Pontet Kurt VanLehn Winslow Burleson Maria Elena Chavez Echeagaray Javier Gonzalez Sanchez Using HCI Task Modeling Techniques to Measure How Deeply Students Model. 766-769 2013 AIED https://doi.org/10.1007/978-3-642-39112-5_108 conf/aied/2013 db/conf/aied/aied2013.html#GirardZHVBES13