VALENZANO, Richard; YANG, Danniel. An Analysis and Enhancement of the Gap Heuristic for the Pancake Puzzle. Proceedings of the International Symposium on Combinatorial Search, [S. l.], v. 8, n. 1, p. 109–117, 2021. DOI: 10.1609/socs.v8i1.18433. Disponível em: https://ojs.aaai.org/index.php/SOCS/article/view/18433. Acesso em: 13 may. 2026.