@article{1093887540, author = {Gagnon, Laurence S.}, title = {NOR logic: a system of natural deduction.}, journal = {Notre Dame J. Formal Logic}, volume = {17}, number = {1}, year = {1976}, pages = { 293-294}, language = {en}, url = {http://dml.mathdoc.fr/item/1093887540} }
Gagnon, Laurence S. NOR logic: a system of natural deduction.. Notre Dame J. Formal Logic, Tome 17 (1976) no. 1, pp. 293-294. http://gdmltest.u-ga.fr/item/1093887540/