@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/