VENKANARASIMHAN, P. V. Ideals in Semi-Lattices. The Journal of the Indian Mathematical Society, [S. l.], v. 30, n. 1, p. 47–53, 1966. DOI: 10.18311/jims/1966/16800. Disponível em: https://informaticsjournals.com/index.php/jims/article/view/16800. Acesso em: 18 jul. 2024.