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@article{AUCMP_2001__42_2_a1, author = {Cicho\'n, Jacek}, title = {On dense subsets of rational numbers}, journal = {Acta Universitatis Carolinae. Mathematica et Physica}, pages = {5--10}, publisher = {mathdoc}, volume = {42}, number = {2}, year = {2001}, mrnumber = {1900385}, zbl = {1001.03045}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AUCMP_2001__42_2_a1/} }
Cichoń, Jacek. On dense subsets of rational numbers. Acta Universitatis Carolinae. Mathematica et Physica, Tome 42 (2001) no. 2, pp. 5-10. http://geodesic.mathdoc.fr/item/AUCMP_2001__42_2_a1/