@article{00679898,
title = {Complexity of the decidability of the unquantified set theory with a rank operator.},
journal = {Georgian Mathematical Journal},
volume = {1},
year = {1994},
pages = {561-565},
doi = {10.1007/BF02317684},
zbl = {0813.03007},
language = {en},
url = {http://dml.mathdoc.fr/item/00679898}
}
Tetruashvili, M. Complexity of the decidability of the unquantified set theory with a rank operator.. Georgian Mathematical Journal, Tome 1 (1994) pp. 561-565. doi : 10.1007/BF02317684. http://gdmltest.u-ga.fr/item/00679898/