@article{bwmeta1.element.bwnjournal-article-fmv77i1p18bwm,
author = {H. Toru\'nczyk},
title = {A simple proof of Hausdorff's theorem on extending metrics},
journal = {Fundamenta Mathematicae},
volume = {75},
year = {1972},
pages = {191-193},
zbl = {0248.54035},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv77i1p18bwm}
}
Toruńczyk, H. A simple proof of Hausdorff's theorem on extending metrics. Fundamenta Mathematicae, Tome 75 (1972) pp. 191-193. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv77i1p18bwm/