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ivo-id="ivo://CDS">CDS</publisher><creator><name>Augusteijn</name></creator><creator><name>T.</name></creator><creator><name>Greimel R.</name></creator><creator><name>van den Besselaar E.J.M.</name></creator><creator><name>Groot P.J.,Morales-Rueda L.</name></creator><date role="Updated">2018-02-01T11:50:43Z</date><date role="Created">2008-09-20T16:53:26Z</date><contact><name>CDS support team</name><address>CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France</address><email>cds-question@unistra.fr</email></contact></curation><content><subject>spectroscopic-binary-stars</subject><subject>visible-astronomy</subject><subject>sloan-photometry</subject><description>To reduce contamination by more distant sources, such as quasars, we have selected candidate white dwarf-red dwarf binaries from the catalogue of proper motion stars drawn from the intersection of the Sloan Digital Sky Survey (SDSS) and the USNO-B1.0 catalogue.</description><source 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