Polo, Maria, Umberto Dello Iacono, Giuseppe Fiorentino, and Anna Pierri. “A Social Network Analysis Approach to a Digital Interactive Storytelling in Mathematics”. Journal of e-Learning and Knowledge Society 15, no. 3 (October 12, 2019): 239-250. Accessed March 29, 2024. http://www.je-lks.org/ojs/index.php/Je-LKS_EN/article/view/1135035.