@article{1077376073,
author = {Ziemer, William P.},
title = {The structure of quasi-open maps},
journal = {Duke Math. J.},
volume = {32},
number = {1},
year = {1965},
pages = { 661-671},
language = {en},
url = {http://dml.mathdoc.fr/item/1077376073}
}
Ziemer, William P. The structure of quasi-open maps. Duke Math. J., Tome 32 (1965) no. 1, pp. 661-671. http://gdmltest.u-ga.fr/item/1077376073/