早川正士
Hayakawa, Global lightning activity on the basis of inversions of natural ELF electromagnetic data observed at multiple stations around the world, Survey Geophys., vol. 32, issue 6, 705-732, DOI 10.1007/s10712-011-9135-1, 2011.
Hayakawa, M., Y. Hobara, A. Rozhnoi, M. Solovieva, K. Ohta, J. Izutsu, T. Nakamura, and Y. Kasahara, The ionospheric precursor to the 2011 March 11 earthquake based upon observations obtained from the Japan-Pacific subionospheric VLF/LF network, Terr. Atmos. Ocean. Sci., vol. 24, no. 3, 393-408, doi: 10.3319/TAO.2012.12.14.01(AA), 2013.
Sorokin, V. and M. Hayakawa, Generation of seismic-related DC electric fields and lithosphere-atmosphere-ionosphere coupling, Modern Appl.