Maly, J., & Wallner, J. P. (2021). Ranking Sets of Defeasible Elements in Preferential Approaches to Structured Argumentation: Postulates, Relations, and Characterizations. Proceedings of the AAAI Conference on Artificial Intelligence, 35(7), 6435-6443. https://doi.org/10.1609/aaai.v35i7.16798