@article{1183732821,
author = {Anderson, Alan Ross},
title = {Independent Axiom Schemata for Von Wright's $M$},
journal = {J. Symbolic Logic},
volume = {22},
number = {1},
year = {1957},
pages = { 241-244},
language = {en},
url = {http://dml.mathdoc.fr/item/1183732821}
}
Anderson, Alan Ross. Independent Axiom Schemata for Von Wright's $M$. J. Symbolic Logic, Tome 22 (1957) no. 1, pp. 241-244. http://gdmltest.u-ga.fr/item/1183732821/