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@article{PORMA_1972__31_4_115178, author = {Rishel, Thomas W.}, title = {A class of spaces determined by sequences with their cluster points}, journal = {Portugaliae mathematica}, pages = {187--192}, publisher = {mathdoc}, volume = {31}, number = {4}, year = {1972}, mrnumber = {0331316}, zbl = {0241.54020}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1972__31_4_115178/} }
Rishel, Thomas W. A class of spaces determined by sequences with their cluster points. Portugaliae mathematica, Tome 31 (1972) no. 4, pp. 187-192. http://geodesic.mathdoc.fr/item/PORMA_1972__31_4_115178/