Hayakawa, Masashi, Hayakawa Institute of Seismo Electromagnetics, Japan

• Annals of Geophysics Vol. 66 No. 6 (2023) - Special Issue: Developments in Earthquake Precursors Studies
  Lower-ionosphere anomalies prior to strong earthquakes that occurred in north-central mainland Greece on March 2021 as revealed by multi-method analysis of VLF sub-ionospheric propagation data
  Abstract  PDF