KUMAR, P. R.; NAINAN, J. On Automata Accepting Biordered Set Languages and its Properties. Communications in Mathematics and Applications, [S. l.], v. 12, n. 3, p. 773–785, 2021. DOI: 10.26713/cma.v12i3.1650. Disponível em: https://www.rgnpublications.com/journals/index.php/cma/article/view/1650. Acesso em: 29 apr. 2024.