@article{1183733636, author = {Hiz, H.}, title = {Extendible Sentential Calculus}, journal = {J. Symbolic Logic}, volume = {24}, number = {1}, year = {1959}, pages = { 193-202}, language = {en}, url = {http://dml.mathdoc.fr/item/1183733636} }
Hiz, H. Extendible Sentential Calculus. J. Symbolic Logic, Tome 24 (1959) no. 1, pp. 193-202. http://gdmltest.u-ga.fr/item/1183733636/