OMORI, Hitoshi; WARAGAI, Toshiharu. On Béziau’s logic Z. Logic and Logical Philosophy, [S. l.], v. 17, n. 4, p. 305–320, 2009. DOI: 10.12775/LLP.2008.017. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2008.017. Acesso em: 18 jul. 2025.