@article{BSL4_1_Malinowski, author = {Grzegorz MALINOWSKI}, title = {Matrix Representation for the Dual Counterparts of Ɓukasiewicz $n$-Valued Sentential Calculi and the Problem of Their Degrees of Maximality}, journal = {Bulletin of the Section of Logic}, volume = {4}, number = {1}, year = {1975}, pages = {26--32} }