@article{1183737376, author = {Kleinberg, E. M.}, title = {Recursion Theory and Formal Deducibility}, journal = {J. Symbolic Logic}, volume = {35}, number = {1}, year = {1970}, pages = { 556-558}, language = {en}, url = {http://dml.mathdoc.fr/item/1183737376} }
Kleinberg, E. M. Recursion Theory and Formal Deducibility. J. Symbolic Logic, Tome 35 (1970) no. 1, pp. 556-558. http://gdmltest.u-ga.fr/item/1183737376/