The longer term evolution of magnetic field and mass flow in a decaying active region

Zhang, H., Ai, G., Wang, H., Zirin, H., & Patterson, A. (2008). The longer term evolution of magnetic field and mass flow in a decaying active region. In The Sun and Cool Stars: activity, magnetism, dynamos (pp. 271–274). Springer Berlin Heidelberg. https://doi.org/10.1007/3-540-53955-7_139