@article{1183734785, author = {Prior, A. N.}, title = {Two Additions to Positive Implication}, journal = {J. Symbolic Logic}, volume = {29}, number = {1}, year = {1964}, pages = { 31-32}, language = {en}, url = {http://dml.mathdoc.fr/item/1183734785} }
Prior, A. N. Two Additions to Positive Implication. J. Symbolic Logic, Tome 29 (1964) no. 1, pp. 31-32. http://gdmltest.u-ga.fr/item/1183734785/