@article{1093956088,
author = {Dreben, Burton and Putnam, Hilary},
title = {The Craig interpolation lemma.},
journal = {Notre Dame J. Formal Logic},
volume = {8},
number = {3},
year = {1967},
pages = { 229-233},
language = {en},
url = {http://dml.mathdoc.fr/item/1093956088}
}
Dreben, Burton; Putnam, Hilary. The Craig interpolation lemma.. Notre Dame J. Formal Logic, Tome 8 (1967) no. 3, pp. 229-233. http://gdmltest.u-ga.fr/item/1093956088/