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@article{CMUC_1960__1_3_a1, author = {Jerison, Meyer}, title = {A note on perfectly normal spaces}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {16--17}, publisher = {mathdoc}, volume = {01}, number = {3}, year = {1960}, zbl = {0096.17003}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1960__1_3_a1/} }
Jerison, Meyer. A note on perfectly normal spaces. Commentationes Mathematicae Universitatis Carolinae, Tome 01 (1960) no. 3, pp. 16-17. http://geodesic.mathdoc.fr/item/CMUC_1960__1_3_a1/