@article{1183731926,
author = {Anderson, Alan Ross},
title = {Improved Decision Procedures for Lewis's Calculus S4 and Von Wright's Calculus $M$},
journal = {J. Symbolic Logic},
volume = {19},
number = {1},
year = {1954},
pages = { 201-214},
language = {en},
url = {http://dml.mathdoc.fr/item/1183731926}
}
Anderson, Alan Ross. Improved Decision Procedures for Lewis's Calculus S4 and Von Wright's Calculus $M$. J. Symbolic Logic, Tome 19 (1954) no. 1, pp. 201-214. http://gdmltest.u-ga.fr/item/1183731926/