@article{1077469841, author = {Kasriel, Robert H.}, title = {Stability of certain quasi-open mappings}, journal = {Duke Math. J.}, volume = {28}, number = {1}, year = {1961}, pages = { 595-605}, language = {en}, url = {http://dml.mathdoc.fr/item/1077469841} }
Kasriel, Robert H. Stability of certain quasi-open mappings. Duke Math. J., Tome 28 (1961) no. 1, pp. 595-605. http://gdmltest.u-ga.fr/item/1077469841/