@article{bwmeta1.element.bwnjournal-article-fmv20i1p12bwm,
author = {Paul Alexandroff},
title = {\"Uber die Urysohnschen Konstanten},
journal = {Fundamenta Mathematicae},
volume = {20},
year = {1933},
pages = {140-150},
zbl = {0006.42602},
language = {deu},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv20i1p12bwm}
}
Alexandroff, Paul. Über die Urysohnschen Konstanten. Fundamenta Mathematicae, Tome 20 (1933) pp. 140-150. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv20i1p12bwm/