§16§It is well known that stellar winds are variable. Recent investigations show that the observed fluctuations are often cyclical in nature. This property seems to be shared by the winds of cool and hot stars, even though the physical mechanisms driving these winds are fundamentally different. The time was ripe for astrophysicists studying different types of stars, but applying very similar models, to present the state of the art in a concise form. The proceedings will provide a useful, up-to-date overview of the observations, interpretation, and modelling of the time-dependent mass outflows from a wide variety of stars, including young, pre-main-sequence objects, solar-type stars, red supergiants, and hot, massive stars. §04§Setting the Stage: Wind Acceleration Mechanisms.- Observations of Cyclical Wind Variability.- Processes Affecting the Emergence of the Stellar Wind.- Modelling Cyclical Variability in Stellar Outflows.- The Musicos 1996 Campaign.- Future Perspective.
