Reich, Justin, Dustin Tingley, Jetson Leder-Luis, Margaret Roberts, and Brandon Stewart. 2015. “Computer Assisted Reading and Discovery for Student Generated Text in Massive Open Online Courses”. Journal of Learning Analytics 2 (1): 156-84.

Roberts, Margaret, Brandon Stewart, Dustin Tingley, Christopher Lucas, Jetson Leder-Luis, Shana Gadarian, Bethany Albertson, and David Rand. 2014. “Structural Topic Models for Open-Ended Survey Responses”. American Journal of Political Science 58: 1064-82.