@article{1183737189, author = {Johnstone, Henry W.}, title = {Review: H. Hiz, Inferential Equivalence and Natural Deduction}, journal = {J. Symbolic Logic}, volume = {35}, number = {1}, year = {1970}, language = {en}, url = {http://dml.mathdoc.fr/item/1183737189} }
Johnstone, Henry W. Review: H. Hiz, Inferential Equivalence and Natural Deduction. J. Symbolic Logic, Tome 35 (1970) no. 1, . http://gdmltest.u-ga.fr/item/1183737189/