@article{bwmeta1.element.bwnjournal-article-smv61i1p14bwm,
author = {N. Kalton},
title = {Universal spaces and universal bases in metric spaces},
journal = {Studia Mathematica},
volume = {60},
year = {1977},
pages = {161-191},
zbl = {0366.46006},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv61i1p14bwm}
}
Kalton, N. Universal spaces and universal bases in metric spaces. Studia Mathematica, Tome 60 (1977) pp. 161-191. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv61i1p14bwm/