@article{1183732066,
author = {Parry, William T.},
title = {Review: Robert Feys, A Simplified Proof of the Reduction of all Modalities to 42 in S3},
journal = {J. Symbolic Logic},
volume = {20},
number = {1},
year = {1955},
language = {en},
url = {http://dml.mathdoc.fr/item/1183732066}
}
Parry, William T. Review: Robert Feys, A Simplified Proof of the Reduction of all Modalities to 42 in S3. J. Symbolic Logic, Tome 20 (1955) no. 1, . http://gdmltest.u-ga.fr/item/1183732066/