@article{1093870688,
author = {Yasuhara, Mitsuru},
title = {Extensionality in Bernays set theory.},
journal = {Notre Dame J. Formal Logic},
volume = {25},
number = {1},
year = {1984},
pages = { 357-363},
language = {en},
url = {http://dml.mathdoc.fr/item/1093870688}
}
Yasuhara, Mitsuru. Extensionality in Bernays set theory.. Notre Dame J. Formal Logic, Tome 25 (1984) no. 1, pp. 357-363. http://gdmltest.u-ga.fr/item/1093870688/