@article{1183737374, author = {Fitting, Melvin}, title = {An Embedding of Classical Logic in S4}, journal = {J. Symbolic Logic}, volume = {35}, number = {1}, year = {1970}, pages = { 529-534}, language = {en}, url = {http://dml.mathdoc.fr/item/1183737374} }
Fitting, Melvin. An Embedding of Classical Logic in S4. J. Symbolic Logic, Tome 35 (1970) no. 1, pp. 529-534. http://gdmltest.u-ga.fr/item/1183737374/