@article{1093894374,
author = {Sanchis, Luis E.},
title = {A generalization of the Gentzen Hauptsatz.},
journal = {Notre Dame J. Formal Logic},
volume = {12},
number = {1},
year = {1971},
pages = { 499-504},
language = {en},
url = {http://dml.mathdoc.fr/item/1093894374}
}
Sanchis, Luis E. A generalization of the Gentzen Hauptsatz.. Notre Dame J. Formal Logic, Tome 12 (1971) no. 1, pp. 499-504. http://gdmltest.u-ga.fr/item/1093894374/