LIU, M.; FAN, J.; VAN DITMARSCH, H.; KUIJER, L. B. Logics for Knowability. Logic and Logical Philosophy, [S. l.], v. 31, n. 3, p. 385–426, 2021. DOI: 10.12775/LLP.2021.018. Disponível em: https://apcz.umk.pl/LLP/article/view/33886. Acesso em: 24 apr. 2024.