Maute, A., Fejer, B. G., Forbes, J. M., Zhang, X., & Yudin, V. (2016). Equatorial vertical drift modulation by the lunar and solar semidiurnal tides during the 2013 sudden stratospheric warming. Journal Of Geophysical Research-Space Physics, 121, 1658-1668. doi:10.1002/2015JA022056