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@article{PORMA_1951__10_2_114515, author = {G\"otlind, Erik}, title = {A {Lesniewski-Mihailescu-theorem} for m-valued propositional calculi}, journal = {Portugaliae mathematica}, pages = {97--102}, publisher = {mathdoc}, volume = {10}, number = {2}, year = {1951}, mrnumber = {0045669}, zbl = {0043.24902}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1951__10_2_114515/} }
Götlind, Erik. A Lesniewski-Mihailescu-theorem for m-valued propositional calculi. Portugaliae mathematica, Tome 10 (1951) no. 2, pp. 97-102. http://geodesic.mathdoc.fr/item/PORMA_1951__10_2_114515/