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@article{10_4064_fm_43_1_77_82, author = {L. Gillman}, title = {Some remarks on $\ensuremath{\eta}_\ensuremath{\alpha}$-sets}, journal = {Fundamenta Mathematicae}, pages = {77--82}, publisher = {mathdoc}, volume = {43}, number = {1}, year = {1956}, doi = {10.4064/fm-43-1-77-82}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-43-1-77-82/} }
L. Gillman. Some remarks on $η_α$-sets. Fundamenta Mathematicae, Tome 43 (1956) no. 1, pp. 77-82. doi : 10.4064/fm-43-1-77-82. http://geodesic.mathdoc.fr/articles/10.4064/fm-43-1-77-82/
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