@article{GDZPPN002084104, title = {Density Continuity versus Continuity.}, journal = {Forum mathematicum}, volume = {2}, year = {1990}, pages = {265-276}, zbl = {0714.26002}, url = {http://dml.mathdoc.fr/item/GDZPPN002084104} }
Ciesielski, K.; Ostaszewski, K. Density Continuity versus Continuity.. Forum mathematicum, Tome 2 (1990) pp. 265-276. http://gdmltest.u-ga.fr/item/GDZPPN002084104/