@article{1183395172,
author = {Heyting, A.},
title = {On Weakened Quantification},
journal = {J. Symbolic Logic},
volume = {11},
number = {1},
year = {1946},
pages = { 119-121},
language = {en},
url = {http://dml.mathdoc.fr/item/1183395172}
}
Heyting, A. On Weakened Quantification. J. Symbolic Logic, Tome 11 (1946) no. 1, pp. 119-121. http://gdmltest.u-ga.fr/item/1183395172/