Hernández-García, Ángel, González-González, I., Jiménez-Zarco, A. I., & Chaparro-Peláez, J. (2016). Visualizations of Online Course Interactions for Social Network Learning Analytics. International Journal of Emerging Technologies in Learning (iJET), 11(07), pp. 6–15. https://doi.org/10.3991/ijet.v11i07.5889