@article{GDZPPN002382849, title = {A Formalisation of Post's m-valued Propositional Calculus.}, journal = {Mathematische Zeitschrift}, volume = {56}, year = {1952}, pages = {94-104}, zbl = {0048.24407}, url = {http://dml.mathdoc.fr/item/GDZPPN002382849} }
Rose, Alan. A Formalisation of Post's m-valued Propositional Calculus.. Mathematische Zeitschrift, Tome 56 (1952) pp. 94-104. http://gdmltest.u-ga.fr/item/GDZPPN002382849/