@article{1093887733, author = {Lichtblau, Dale E.}, title = {Prior and the Barcan formula.}, journal = {Notre Dame J. Formal Logic}, volume = {17}, number = {1}, year = {1976}, pages = { 622-624}, language = {en}, url = {http://dml.mathdoc.fr/item/1093887733} }
Lichtblau, Dale E. Prior and the Barcan formula.. Notre Dame J. Formal Logic, Tome 17 (1976) no. 1, pp. 622-624. http://gdmltest.u-ga.fr/item/1093887733/