@article{bwmeta1.element.zamlynska-60d7f395-2332-4341-99cc-5e85b56a5754,
author = {Th. Friedrich},
title = {A characterization of the disc $D^n$
},
journal = {Colloquium Mathematicae},
volume = {31},
year = {1974},
pages = {77-81},
zbl = {0295.57020},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.zamlynska-60d7f395-2332-4341-99cc-5e85b56a5754}
}
Th. Friedrich. A characterization of the disc $D^n$
. Colloquium Mathematicae, Tome 31 (1974) pp. 77-81. http://gdmltest.u-ga.fr/item/bwmeta1.element.zamlynska-60d7f395-2332-4341-99cc-5e85b56a5754/