HELMERT, Malte. Landmark Heuristics for the Pancake Problem. Proceedings of the International Symposium on Combinatorial Search, [S. l.], v. 1, n. 1, p. 109–110, 2010. DOI: 10.1609/socs.v1i1.18176. Disponível em: https://ojs.aaai.org/index.php/SOCS/article/view/18176. Acesso em: 18 may. 2026.