@article{GDZPPN00230399X,
title = {Some Special Properties of Cofinality of Ordinal Numbers.},
journal = {Mathematische Annalen},
volume = {189},
year = {1970},
pages = {325-329},
zbl = {0193.30802},
url = {http://dml.mathdoc.fr/item/GDZPPN00230399X}
}
ABIAN, A. Some Special Properties of Cofinality of Ordinal Numbers.. Mathematische Annalen, Tome 189 (1970) pp. 325-329. http://gdmltest.u-ga.fr/item/GDZPPN00230399X/