Rotation and Long-term Activity in Evolved Stars Baliunas, S. L. ; Donahue, R. A. ; Noyes, R. W. ; Duncan, D. K. ; Frazer, J. ; Misch, A. ; Mueller, J. ; Woodard, L. ; Vaughan, A. H. Abstract Publication: Bulletin of the American Astronomical Society Pub Date: September 1986 Bibcode: 1986BAAS...18Q.983B