@article{1093957317,
author = {Scharle, Thomas W.},
title = {A diagram of the functors of the two-valued propositional calculus.},
journal = {Notre Dame J. Formal Logic},
volume = {3},
number = {1},
year = {1962},
pages = { 243-255},
language = {en},
url = {http://dml.mathdoc.fr/item/1093957317}
}
Scharle, Thomas W. A diagram of the functors of the two-valued propositional calculus.. Notre Dame J. Formal Logic, Tome 3 (1962) no. 1, pp. 243-255. http://gdmltest.u-ga.fr/item/1093957317/