Noboru Matsuda Victoria Keiser Rohan Raizada Gabriel Stylianides William W. Cohen Kenneth R. Koedinger Learning by Teaching SimStudent - Interactive Event. 623 2011 AIED http://dx.doi.org/10.1007/978-3-642-21869-9_124 conf/aied/2011 db/conf/aied/aied2011.html#MatsudaKRSCK11