Photometric and spectroscopic binary systems : proceedings of the NATO Advanced Study Institute held at Maratea, Italy, June 1-14, 1980 / ed. by Ellen B. Carling and Zdeněk Kopal

Photometric and spectroscopic binary systems : proceedings of the NATO Advanced Study Institute held at Maratea, Italy, June 1-14, 1980 / ed. by Ellen B. Carling and Zdeněk Kopal