Hoeksema, J. T., Liu, Y., Hayashi, K., Sun, X., Schou, J., Couvidat, S., et al. (2014). The Helioseismic and Magnetic Imager (HMI) vector magnetic field pipeline: overview and performance. Solar Physics, 289, 3483-3530. doi:10.1007/s11207-014-0516-8.