@article{MAN_1968__179_161773,
     author = {A. ABIAN},
     title = {On the {Cofinality} of {Ordinal} {Numbers.}},
     journal = {Mathematische Annalen},
     pages = {142--152},
     publisher = {mathdoc},
     volume = {179},
     year = {1968},
     zbl = {0179.01701},
     url = {http://geodesic.mathdoc.fr/item/MAN_1968__179_161773/}
}