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W.I. Hartkopf, B.D. Mason, C.E. Worley. The 2001 US Naval Observatory Double Star CD-ROM. II. The Fifth Catalog of Orbits of Visual Binary Stars. „The Astronomical Journal”. 122 (6), s. 3472–3479, 2001. DOI: 10.1086/323921. Bibcode: 2001AJ....122.3472H.