@article{GDZPPN002288540, title = {\"Uber stetige, offene Abbildungen.}, journal = {Mathematische Annalen}, volume = {141}, year = {1960}, pages = {417-421}, language = {de}, url = {http://dml.mathdoc.fr/item/GDZPPN002288540} }
Reiter, H. Über stetige, offene Abbildungen.. Mathematische Annalen, Tome 141 (1960) pp. 417-421. http://gdmltest.u-ga.fr/item/GDZPPN002288540/