From the Sixth Catalog of Orbits of Visual Binary Stars, based upon Hartkopf, W. I.; Mason, B. D.; McAlister, H. A., Binary star orbits from speckle interferometry. VIII. Orbits of 37 close visual systems, Astronomical Journal, 1996, 111: 370–392, Bibcode:1996AJ....111..370H, doi:10.1086/117790
From the Sixth Catalog of Orbits of Visual Binary Stars, based upon Hartkopf, W. I.; Mason, B. D.; McAlister, H. A., Binary star orbits from speckle interferometry. VIII. Orbits of 37 close visual systems, Astronomical Journal, 1996, 111: 370–392, Bibcode:1996AJ....111..370H, doi:10.1086/117790