@article{1183142086, author = {Emch, Arnold F.}, title = {Implication and Deducibility}, journal = {J. Symbolic Logic}, volume = {1}, number = {1}, year = {1936}, pages = { 26-35}, language = {en}, url = {http://dml.mathdoc.fr/item/1183142086} }
Emch, Arnold F. Implication and Deducibility. J. Symbolic Logic, Tome 1 (1936) no. 1, pp. 26-35. http://gdmltest.u-ga.fr/item/1183142086/