@article{1093958557, author = {Leblanc, Hugues}, title = {Two separation theorems for natural deduction.}, journal = {Notre Dame J. Formal Logic}, volume = {7}, number = {1}, year = {1966}, pages = { 159-180}, language = {en}, url = {http://dml.mathdoc.fr/item/1093958557} }
Leblanc, Hugues. Two separation theorems for natural deduction.. Notre Dame J. Formal Logic, Tome 7 (1966) no. 1, pp. 159-180. http://gdmltest.u-ga.fr/item/1093958557/