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@article{JRAM_1973__264_151393, author = {Mary Powderly}, title = {On expansions of a {Urysohn} space to a regular space.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {182--183}, publisher = {mathdoc}, volume = {264}, year = {1973}, zbl = {0267.54014}, url = {http://geodesic.mathdoc.fr/item/JRAM_1973__264_151393/} }
Mary Powderly. On expansions of a Urysohn space to a regular space.. Journal für die reine und angewandte Mathematik, Tome 264 (1973), pp. 182-183. http://geodesic.mathdoc.fr/item/JRAM_1973__264_151393/