@article{1183734298, author = {Anderson, Alan Ross and Belnap, Nuel D.}, title = {The Pure Calculus of Entailment}, journal = {J. Symbolic Logic}, volume = {27}, number = {1}, year = {1962}, pages = { 19-52}, language = {en}, url = {http://dml.mathdoc.fr/item/1183734298} }
Anderson, Alan Ross; Belnap, Nuel D. The Pure Calculus of Entailment. J. Symbolic Logic, Tome 27 (1962) no. 1, pp. 19-52. http://gdmltest.u-ga.fr/item/1183734298/