Mostow, Jack, and Gregory Aist. “Giving Help and Praise in a Reading Tutor With Imperfect Listening--Because Automated Speech Recognition Means Never Being Able to Say You’re Certain”. CALICO Journal, vol. 16, no. 3, Jan. 2013, pp. 407-24, https://doi.org/10.1558/cj.v16i3.407-424.