@article{1093891907,
author = {Turek, Charles},
title = {Lehmann on the rules of the invalid syllogisms.},
journal = {Notre Dame J. Formal Logic},
volume = {16},
number = {1},
year = {1975},
pages = { 603-604},
language = {en},
url = {http://dml.mathdoc.fr/item/1093891907}
}
Turek, Charles. Lehmann on the rules of the invalid syllogisms.. Notre Dame J. Formal Logic, Tome 16 (1975) no. 1, pp. 603-604. http://gdmltest.u-ga.fr/item/1093891907/