BERKER, Ratip Emin; TEWOLDE, Emanuel; CONITZER, Vincent; GUO, Mingyu; HEULE, Marijn; XIA, Lirong. On the Edge of Core (Non-)Emptiness: An Automated Reasoning Approach to Approval-Based Multi-Winner Voting. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 40, n. 20, p. 16673–16681, 2026. DOI: 10.1609/aaai.v40i20.38709. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/38709. Acesso em: 14 may. 2026.