Wagster, J., Kwong, H., Sagedy, J., Biswas, G., & Shwartz, D. (2008). Bringing CBLEs into classrooms: Experiences with the Betty’s Brain system. The Eighth IEEE International Conference on Advanced Learning Technologies. Santander, Cantabria, Spain.

Schwartz, D. L., Chase, C., Chin, D., Oppezzo, M., Kwong, H., Okita, S., … Wagster, J. D. (2009). Interactive Metacognition: Monitoring and Regulating a Teachable Agent. Handbook of Metacognition in Education (pp. 340–358).