Tomova, Natalya. “A Semi-Lattice of Four-Valued Literal-Paraconsistent-Paracomplete Logics”. Bulletin of the Section of Logic 50, no. 1 (November 13, 2020): 35–53. Accessed April 12, 2025. https://czasopisma.uni.lodz.pl/bulletin/article/view/7710.