@article{100340,
author = {Zden\v ek Frol\'\i k},
title = {On $G\_\delta$-spaces},
journal = {Czechoslovak Mathematical Journal},
volume = {09},
year = {1959},
pages = {63-65},
zbl = {0084.38201},
mrnumber = {0112116},
language = {en},
url = {http://dml.mathdoc.fr/item/100340}
}
Frolík, Zdeněk. On $G_\delta$-spaces. Czechoslovak Mathematical Journal, Tome 09 (1959) pp. 63-65. http://gdmltest.u-ga.fr/item/100340/