@article{1093893525, author = {Coppotelli, Fred}, title = {A first order type theory for the theory of sets.}, journal = {Notre Dame J. Formal Logic}, volume = {9}, number = {1}, year = {1968}, pages = { 367-370}, language = {en}, url = {http://dml.mathdoc.fr/item/1093893525} }
Coppotelli, Fred. A first order type theory for the theory of sets.. Notre Dame J. Formal Logic, Tome 9 (1968) no. 1, pp. 367-370. http://gdmltest.u-ga.fr/item/1093893525/