WALENDZIAK, A. On Implicative and Positive Implicative GE Algebras. Bulletin of the Section of Logic, [S. l.], v. 52, n. 4, p. 497–515, 2023. DOI: 10.18778/0138-0680.2023.21. Disponível em: https://czasopisma.uni.lodz.pl/bulletin/article/view/14019. Acesso em: 10 may. 2024.