@article{GDZPPN002392089, title = {Blumberg sets and quasi-continuity.}, journal = {Mathematische Zeitschrift}, volume = {78}, year = {1962}, pages = {451-455}, zbl = {0105.27004}, url = {http://dml.mathdoc.fr/item/GDZPPN002392089} }
Neugebauer, C.J. Blumberg sets and quasi-continuity.. Mathematische Zeitschrift, Tome 78 (1962) pp. 451-455. http://gdmltest.u-ga.fr/item/GDZPPN002392089/