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Rus, V., Olney, A. M., Foltz, P. W. F., & Hu, X. (2017). Automated Assessment of Learner-Generated Natural Language Responses. In R. Sottilare, A. Graesser, X. Hu, & G. Goodwin (Eds.), Design Recommendations for Intelligent Tutoring Systems: Assessment Methods (Vol. 5, pp. 155–170). Orlando, FL: U.S. Army Research Laboratory.