TAN, X.; HUANG, J. X. A Complexity-theoretic Analysis of Green Pickup-and-Delivery Problems. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 35, n. 13, p. 11990-11997, 2021. DOI: 10.1609/aaai.v35i13.17424. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/17424. Acesso em: 17 may. 2024.