LIU, Guangwu. Transformations Induced by Transducers. Triangle, Tarragona, n. 8, p. 43–54, 2018. DOI: 10.17345/triangle8.43-54. Disponível em: https://revistes.urv.cat/index.php/triangle/article/view/2401.. Acesso em: 20 may. 2026.