@article{1183730812,
author = {Fitch, Frederic B.},
title = {A Demonstrably Consistent Mathematics--Part I},
journal = {J. Symbolic Logic},
volume = {14},
number = {4},
year = {1950},
pages = { 17-24},
language = {en},
url = {http://dml.mathdoc.fr/item/1183730812}
}
Fitch, Frederic B. A Demonstrably Consistent Mathematics--Part I. J. Symbolic Logic, Tome 14 (1950) no. 4, pp. 17-24. http://gdmltest.u-ga.fr/item/1183730812/