@article{00617206, title = {Non-regularity of some topologies on }, journal = {Mathematica Pannonica}, volume = {5}, year = {1994}, pages = {105-110}, zbl = {0802.54011}, language = {en}, url = {http://dml.mathdoc.fr/item/00617206} }
Popvassilev, Strashimir G. Non-regularity of some topologies on . Mathematica Pannonica, Tome 5 (1994) pp. 105-110. http://gdmltest.u-ga.fr/item/00617206/