@article{1093891008,
author = {Pahi, Biswambhar},
title = {Necessity and some non-modal propositional calculi.},
journal = {Notre Dame J. Formal Logic},
volume = {14},
number = {1},
year = {1973},
pages = { 401-404},
language = {en},
url = {http://dml.mathdoc.fr/item/1093891008}
}
Pahi, Biswambhar. Necessity and some non-modal propositional calculi.. Notre Dame J. Formal Logic, Tome 14 (1973) no. 1, pp. 401-404. http://gdmltest.u-ga.fr/item/1093891008/