WESSERLING, J. A three-valued doxastic logic based on Kleene’s and Bochvar’s ideas. Studia Philosophiae Christianae, [S. l.], v. 55, n. 4, p. 89–113, 2019. DOI: 10.21697/spch.2019.55.4.04. Disponível em: https://czasopisma.uksw.edu.pl/index.php/spch/article/view/7209. Acesso em: 18 grudz. 2024.