@article{1093957806,
author = {Soboci\'nski, Boles\l aw},
title = {On the propositional system $A$ of Vu\v ckovi\'c and its extension. I.},
journal = {Notre Dame J. Formal Logic},
volume = {5},
number = {1},
year = {1964},
pages = { 141-153},
language = {en},
url = {http://dml.mathdoc.fr/item/1093957806}
}
Sobociński, Bolesław. On the propositional system $A$ of Vučković and its extension. I.. Notre Dame J. Formal Logic, Tome 5 (1964) no. 1, pp. 141-153. http://gdmltest.u-ga.fr/item/1093957806/