Ionospheric Oscillation with Periods of 6-30 Days at Middle Latitudes: A Response to Solar Radiative, Geomagnetic, and Lower Atmospheric Forcing. - Zhenlin Yang; Sheng-Yang Gu; Yusong Qin; Chen-Ke-Min Teng; Yafei Wei; Xiankang Dou (Remote. Sens., 2022)