@article{GDZPPN002409631,
title = {On Supernormal Ehresmann-Dedecker Universes.},
journal = {Mathematische Zeitschrift},
volume = {121},
year = {1971},
pages = {342-350},
zbl = {0215.32603},
url = {http://dml.mathdoc.fr/item/GDZPPN002409631}
}
Brignole, D.; Costa, N.C.A. Da. On Supernormal Ehresmann-Dedecker Universes.. Mathematische Zeitschrift, Tome 121 (1971) pp. 342-350. http://gdmltest.u-ga.fr/item/GDZPPN002409631/