Multiple Periodic Variable Stars Proceedings of the International Astronomical Union Colloquium No. 29, Held at Budapest, Hungary 1–5 September 1975

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Binary and Multiple Stars as Tracers of Stellar Evolution Proceedings of the 69th Colloquium of the International Astronomical Union, Held in Bamberg, F.R.G., August 31 – September 3, 1981

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Wide Components in Double and Multiple Stars Proceedings of the 97th Colloquium of the International Astronomical Union held in Brussels, Belgium, 8–13 June, 1987

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Non-Periodic Phenomena in Variable Stars

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Mass Loss from Stars Proceedings of the Second Trieste Colloquium on Astrophysics, 12–17 September, 1968

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Cool Stars with Excesses of Heavy Elements Proceedings of the Strasbourg Observatory Colloquium Held at Strasbourg, France, July 3–6, 1984

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Calibration of Fundamental Stellar Quantities Proceedings of the 111th Symposium of the International Astronomical Union held at Villa Olmo, Como, Italy, May 24–29, 1984

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Problems of Stellar Convection: Proceedings of the Colloquium No. 38 of the International Astronomical Union Held in Nice, August 16-20, 1976 (Lecture Notes in Physics)

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Inside the Sun Proceedings of the 121st Colloquium of the International Astronomical Union, Held at Versailles, France, May 22–26, 1989

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Bioastronomy - The Next Steps Proceedings of the 99th Colloquium of the International Astronomical Union held in Balaton, Hungary, June 22–27, 1987

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Stellar Rotation Proceedings of the IAU Colloquium held at the Ohio State University, Columbus, O., U.S.A., September 8–11, 1969