@article{bwmeta1.element.bwnjournal-article-smv38i1p23bwm,
author = {S. Kwapie\'n},
title = {A linear topological characterization of inner-product spaces},
journal = {Studia Mathematica},
volume = {34},
year = {1970},
pages = {277-278},
zbl = {0203.43302},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv38i1p23bwm}
}
Kwapień, S. A linear topological characterization of inner-product spaces. Studia Mathematica, Tome 34 (1970) pp. 277-278. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv38i1p23bwm/