ALFORD, Ron; SHIVASHANKAR, Vikas; KUTER, Ugur; NAU, Dana. HTN Problem Spaces: Structure, Algorithms, Termination. Proceedings of the International Symposium on Combinatorial Search, [S. l.], v. 3, n. 1, p. 2–9, 2021. DOI: 10.1609/socs.v3i1.18239. Disponível em: https://ojs.aaai.org/index.php/SOCS/article/view/18239. Acesso em: 27 may. 2026.