@article{1093870936, author = {Ballard, David}, title = {Independence in higher-order subclassical logic.}, journal = {Notre Dame J. Formal Logic}, volume = {26}, number = {1}, year = {1985}, pages = { 444-454}, language = {en}, url = {http://dml.mathdoc.fr/item/1093870936} }
Ballard, David. Independence in higher-order subclassical logic.. Notre Dame J. Formal Logic, Tome 26 (1985) no. 1, pp. 444-454. http://gdmltest.u-ga.fr/item/1093870936/