@article{1183730667,
author = {Levin, Nathan P.},
title = {Computational Logic},
journal = {J. Symbolic Logic},
volume = {14},
number = {1},
year = {1949},
pages = { 167-172},
language = {en},
url = {http://dml.mathdoc.fr/item/1183730667}
}
Levin, Nathan P. Computational Logic. J. Symbolic Logic, Tome 14 (1949) no. 1, pp. 167-172. http://gdmltest.u-ga.fr/item/1183730667/