@article{1183734631, author = {Fitch, Frederic B.}, title = {The System $C\Delta$ of Combinatory Logic}, journal = {J. Symbolic Logic}, volume = {28}, number = {1}, year = {1963}, pages = { 87-97}, language = {en}, url = {http://dml.mathdoc.fr/item/1183734631} }
Fitch, Frederic B. The System $C\Delta$ of Combinatory Logic. J. Symbolic Logic, Tome 28 (1963) no. 1, pp. 87-97. http://gdmltest.u-ga.fr/item/1183734631/