Romero, D., Meeder, B., Barash, V. and Kleinberg, J. (2021) “Maintaining Ties on Social Media Sites: The Competing Effects of Balance, Exchange, and Betweenness”, Proceedings of the International AAAI Conference on Web and Social Media, 5(1), pp. 606-609. doi: 10.1609/icwsm.v5i1.14188.