SIRISATIANWATTANA, P.; KONGIN, C. Algorithm for Calculating the Number of Derivations on Chain Lattice. Journal of Science and Technology CRRU, Chiangrai, Thailand, v. 1, n. 2, p. 27–37, 2022. Disponível em: https://li01.tci-thaijo.org/index.php/jstcrru/article/view/256177. Acesso em: 24 feb. 2024.