@article{1183730813, author = {Wang, Hao}, title = {A Formal System of Logic}, journal = {J. Symbolic Logic}, volume = {14}, number = {4}, year = {1950}, pages = { 25-32}, language = {en}, url = {http://dml.mathdoc.fr/item/1183730813} }
Wang, Hao. A Formal System of Logic. J. Symbolic Logic, Tome 14 (1950) no. 4, pp. 25-32. http://gdmltest.u-ga.fr/item/1183730813/