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Chapter
Rotational Modulation of Hα Emission in RS CVN Systems
The spectroscopic Hα observations of five RS CVn systems (UX Ari, HR 1099, Z Her, HK Lac, RT Lac) and of the contact system VW Cep here discussed were obtained in 1989, 1990, 1991, 1993 and 1994 with the 91-cm...