EITER, Thomas; KIESEL, Rafael. On the Complexity of Sum-of-Products Problems over Semirings. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 35, n. 7, p. 6304–6311, 2021. DOI: 10.1609/aaai.v35i7.16783. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/16783. Acesso em: 9 may. 2026.