MICHALCZENIA, Patryk. A Note on the Number of Subnormal Modal Logics. Bulletin of the Section of Logic, Poland, p. 12 pp., 2026. DOI: 10.18778/0138-0680.2026.19. Disponível em: https://czasopisma.uni.lodz.pl/bulletin/article/view/27677. Acesso em: 20 sep. 2026.