@article{1093891414,
author = {Burdick, Howard},
title = {On syntactical characterization of logical expressions.},
journal = {Notre Dame J. Formal Logic},
volume = {15},
number = {1},
year = {1974},
pages = { 489-490},
language = {en},
url = {http://dml.mathdoc.fr/item/1093891414}
}
Burdick, Howard. On syntactical characterization of logical expressions.. Notre Dame J. Formal Logic, Tome 15 (1974) no. 1, pp. 489-490. http://gdmltest.u-ga.fr/item/1093891414/