@article{1183744621, author = {Takeuti, Gaisi}, title = {The Critical Number of a Variable in a Function}, journal = {J. Symbolic Logic}, volume = {59}, number = {1}, year = {1994}, pages = { 1228-1244}, language = {en}, url = {http://dml.mathdoc.fr/item/1183744621} }
Takeuti, Gaisi. The Critical Number of a Variable in a Function. J. Symbolic Logic, Tome 59 (1994) no. 1, pp. 1228-1244. http://gdmltest.u-ga.fr/item/1183744621/