1. Multiplicity among solar-type stars
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3. Hoffleit, D. & Jaschek, C. 1982, The Bright Star Catalogue (4th rev. ed.; New Haven: Yale Univ. Obs.)
4. Hoffleit, D., Saladyga, M. & Wlasuk, P. 1983, A Supplement to the Bright Star Catalogue (New Haven: Yale Univ. Obs.)