KRONEGGER, M.; ORDYNIAK, S.; PFANDLER, A. Variable-Deletion Backdoors to Planning. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 29, n. 1, 2015. DOI: 10.1609/aaai.v29i1.9662. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/9662. Acesso em: 16 aug. 2022.