Brill, M., T. Delemazure, A.-M. George, M. Lackner, and U. Schmidt-Kraepelin. “Liquid Democracy With Ranked Delegations”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 36, no. 5, June 2022, pp. 4884-91, doi:10.1609/aaai.v36i5.20417.