@article{1183389188, author = {Bernays, Paul}, title = {A System of Axiomatic Set Theory--Part II}, journal = {J. Symbolic Logic}, volume = {6}, number = {1}, year = {1941}, pages = { 1-17}, language = {en}, url = {http://dml.mathdoc.fr/item/1183389188} }
Bernays, Paul. A System of Axiomatic Set Theory--Part II. J. Symbolic Logic, Tome 6 (1941) no. 1, pp. 1-17. http://gdmltest.u-ga.fr/item/1183389188/