CHAUDHARI, J. N.; INGALE, K. J. On k-Regular Semirings. The Journal of the Indian Mathematical Society, [S. l.], v. 82, n. 3-4, p. 1–11, 2015. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/1678. Acesso em: 29 apr. 2024.