Activity in Cool Star Envelopes Proceedings of the Midnight Sun Conference, held in Tromsø, Norway, July 1–8,1987

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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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The Sun and Cool Stars: activity, magnetism, dynamos: Proceedings of Colloquium No. 130 of the International Astronomical Union Held in Helsinki, Finland, 17–20 July 1990 (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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Accretion Disks and Magnetic Fields in Astrophysics Proceedings of the European Physical Society Study Conference, Held in Noto (Sicily), Italy, June 16–21, 1988

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Surface Inhomogeneities on Late-Type Stars Proceedings of a Colloquium Held at Armagh Observatory, Northern Ireland, 24–27 July 1990

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Problems in Stellar Atmospheres and Envelopes

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Cool Stars, Stellar Systems and the Sun Proceedings of the Fourth Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, Held in Santa Fe, New Mexico, October 16-18, 1985

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Motions in the Solar Atmosphere Proceedings of the Summerschool and Workshop Held at the Solar Observatory Kanzelhöhe Kärnten, Austria, September 1–12, 1997