@article{1093883175, author = {Statman, Richard}, title = {Solution to a problem of Chang and Lee.}, journal = {Notre Dame J. Formal Logic}, volume = {21}, number = {1}, year = {1980}, pages = { 518-520}, language = {en}, url = {http://dml.mathdoc.fr/item/1093883175} }
Statman, Richard. Solution to a problem of Chang and Lee.. Notre Dame J. Formal Logic, Tome 21 (1980) no. 1, pp. 518-520. http://gdmltest.u-ga.fr/item/1093883175/