@article{1183736775,
author = {Bull, R. A.},
title = {On Modal Logic with Propositional Quantifiers},
journal = {J. Symbolic Logic},
volume = {34},
number = {1},
year = {1969},
pages = { 257-263},
language = {en},
url = {http://dml.mathdoc.fr/item/1183736775}
}
Bull, R. A. On Modal Logic with Propositional Quantifiers. J. Symbolic Logic, Tome 34 (1969) no. 1, pp. 257-263. http://gdmltest.u-ga.fr/item/1183736775/