@article{2563,
author = {Worrell, J.M. jr.},
title = {Upper semicontinuous decompositions of spaces having bases of countable order},
journal = {Portugaliae mathematica},
volume = {26},
year = {1967},
pages = {493-504},
zbl = {0189.53303},
mrnumber = {0257977},
language = {en},
url = {http://dml.mathdoc.fr/item/2563}
}
Worrell, J.M. jr. Upper semicontinuous decompositions of spaces having bases of countable order. Portugaliae mathematica, Tome 26 (1967) pp. 493-504. http://gdmltest.u-ga.fr/item/2563/