@article{1183735176,
author = {Harrop, Ronald},
title = {Some Structure Results for Propositional Calculi},
journal = {J. Symbolic Logic},
volume = {30},
number = {1},
year = {1965},
pages = { 271-292},
language = {en},
url = {http://dml.mathdoc.fr/item/1183735176}
}
Harrop, Ronald. Some Structure Results for Propositional Calculi. J. Symbolic Logic, Tome 30 (1965) no. 1, pp. 271-292. http://gdmltest.u-ga.fr/item/1183735176/