Closed copies of the rationals
Douwen, Eric K.
Commentationes Mathematicae Universitatis Carolinae, Tome 028 (1987), p. 137-139 / Harvested from Czech Digital Mathematics Library
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Publié le : 1987-01-01
Classification:  54B05,  54E52,  54E65,  54F65 
@article{106516,
     author = {Eric K. Douwen},
     title = {Closed copies of the rationals},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     volume = {028},
     year = {1987},
     pages = {137-139},
     zbl = {0614.54028},
     mrnumber = {889775},
     language = {en},
     url = {http://dml.mathdoc.fr/item/106516}
}

Douwen, Eric K. Closed copies of the rationals. Commentationes Mathematicae Universitatis Carolinae, Tome 028 (1987) pp. 137-139. http://gdmltest.u-ga.fr/item/106516/

W. Hurewicz Relativ perfekte Teile von Punktmengen und Mengen (A), Fund. Math. 12 (1928), 78-109. (1928)

W. Sierpiňski Sur une propriété topologique des ensembles dénombrables denses en soi, Fund. Math. 1 (1920), 11-16. (1920)