WALENDZIAK, A. Pseudo-BCH Semilattices. Bulletin of the Section of Logic, [S. l.], v. 47, n. 2, p. 117–128, 2018. DOI: 10.18778/0138-0680.47.2.04. Disponível em: https://www.czasopisma.uni.lodz.pl/bulletin/article/view/3925. Acesso em: 2 jun. 2024.