Anagnostopoulos, Georgios C., Efthymios Vassiliadis, and Sergey Pulinets. 2012. “Characteristics of Flux-Time Profiles, Temporal Evolution, and Spatial Distribution of Radiation-Belt Electron Precipitation Bursts in the Upper Ionosphere before Great and Giant Earthquakes”. Annals of Geophysics 55 (1). https://doi.org/10.4401/ag-5365.