@article{1093882677, author = {Zeman, J. Jay}, title = {Two basic pure-implicational systems.}, journal = {Notre Dame J. Formal Logic}, volume = {20}, number = {1}, year = {1979}, pages = { 674-684}, language = {en}, url = {http://dml.mathdoc.fr/item/1093882677} }
Zeman, J. Jay. Two basic pure-implicational systems.. Notre Dame J. Formal Logic, Tome 20 (1979) no. 1, pp. 674-684. http://gdmltest.u-ga.fr/item/1093882677/