@article{1183733348, author = {Craig, W. and Vaught, R. L.}, title = {Finite Axiomatizability Using Additional Predicates}, journal = {J. Symbolic Logic}, volume = {23}, number = {1}, year = {1958}, pages = { 289-308}, language = {en}, url = {http://dml.mathdoc.fr/item/1183733348} }
Craig, W.; Vaught, R. L. Finite Axiomatizability Using Additional Predicates. J. Symbolic Logic, Tome 23 (1958) no. 1, pp. 289-308. http://gdmltest.u-ga.fr/item/1183733348/