Li, S., N. Kiuru, T. Palonen, K. Salmela-Aro, and K. Hakkarainen. “Peer Selection and Influence: Students’ Interest-Driven Socio-Digital Participation and Friendship Networks”. Frontline Learning Research, vol. 8, no. 4, June 2020, pp. 1 -17, doi:10.14786/flr.v8i4.457.