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@article{PORMA_1973__32_3_115201, author = {Williams, Scott}, title = {Transfinite cardinal dimension and separability}, journal = {Portugaliae mathematica}, pages = {139--145}, publisher = {mathdoc}, volume = {32}, number = {3}, year = {1973}, mrnumber = {0321042}, zbl = {0261.54027}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1973__32_3_115201/} }
Williams, Scott. Transfinite cardinal dimension and separability. Portugaliae mathematica, Tome 32 (1973) no. 3, pp. 139-145. http://geodesic.mathdoc.fr/item/PORMA_1973__32_3_115201/