@article{1077477211,
author = {Tong, Hing},
title = {Some characterizations of normal and perfectly normal spaces},
journal = {Duke Math. J.},
volume = {19},
number = {1},
year = {1952},
pages = { 289-292},
language = {en},
url = {http://dml.mathdoc.fr/item/1077477211}
}
Tong, Hing. Some characterizations of normal and perfectly normal spaces. Duke Math. J., Tome 19 (1952) no. 1, pp. 289-292. http://gdmltest.u-ga.fr/item/1077477211/