LI, J.; HARABOR, D.; STUCKEY, P. J.; MA, H.; KOENIG, S. Symmetry-Breaking Constraints for Grid-Based Multi-Agent Path Finding. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 33, n. 01, p. 6087-6095, 2019. DOI: 10.1609/aaai.v33i01.33016087. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/4565. Acesso em: 20 sep. 2021.