2019

Chulliat, A., W. Brown, P. Alken, S. Macmillan, M. Nair, C. Beggan, A. Woods, B. Hamilton, B. Meyer, and R. Redmon, Out-of-Cycle Update of the US/UK World Magnetic Model for 2015-2020: Technical Note, National Centers for Environmental Information, NOAA, doi:10.25921/xhr3-0t19, 2019.

Chulliat, A., U. Weckmann, O. Ritter, S. Gilder, M. Wack, E. Kronberg, and A. Prabhu, Geomagnetic and Electromagnetic Observations at Ground Level, in: Geomagnetism, Aeronomy and Space Weather: a Journey from the Earth's Core to the Sun, edited by M. Mandea, M. Korte, A. Yau and E. Petrovsky, Cambridge University Press, 350 p., 2019.

Soares, G., Y. Yamazaki, J. Matzka, K. Pinheiro, C. Stolle, P. Alken, A. Yoshikawa, T. Uozumi, A. Fujimoto, and A. Kulkarni, Longitudinal variability of the equatorial counter electrojet during the solar cycle 24, Stud. Geophys. Geod., https://doi.org/10.1007/s11200-018-0286-0, 2019.