@article{1183731397, author = {Fitch, Frederic B.}, title = {Review: Gustav Bergmann, Concerning the Definition of Classes}, journal = {J. Symbolic Logic}, volume = {17}, number = {1}, year = {1952}, language = {en}, url = {http://dml.mathdoc.fr/item/1183731397} }
Fitch, Frederic B. Review: Gustav Bergmann, Concerning the Definition of Classes. J. Symbolic Logic, Tome 17 (1952) no. 1, . http://gdmltest.u-ga.fr/item/1183731397/