Filius, Renée Marianne, Renske A.M. de Kleijn, Sabine G. Uijl, Frans J. Prins, Harold V.M. Rijen, and Diederick E. Grobbee. “Promoting Deep Learning through Online Feedback in SPOCs”. Frontline Learning Research 6, no. 2 (November 12, 2018): 92-113. Accessed August 15, 2020. https://journals.sfu.ca/flr/index.php/journal/article/view/350.