@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20201009-102843318,
    title = "The Sun and Cool Stars: activity, magnetism, dynamos",
    chapter = "The longer term evolution of magnetic field and mass flow in a decaying active region",
    year = "1991",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20201009-102843318",
    id = "record",
    isbn = "9783540539551",
    doi = "10.1007/3-540-53955-7\_139"
}