@article{1183736435,
author = {Zeman, J. Jay},
title = {The Semisubstitutivity of Strict Implication},
journal = {J. Symbolic Logic},
volume = {33},
number = {1},
year = {1968},
pages = { 462-464},
language = {en},
url = {http://dml.mathdoc.fr/item/1183736435}
}
Zeman, J. Jay. The Semisubstitutivity of Strict Implication. J. Symbolic Logic, Tome 33 (1968) no. 1, pp. 462-464. http://gdmltest.u-ga.fr/item/1183736435/