The ionospheric precursor to the 2011 march 11 earthquake as based on the Japan-pacific subionospheric VLF/LF network observation

by Hayakawa, M., Hobara, Y., Rozhnoi, A., Solovieva, M., Ohta, K., Izutsu, J., Nakamura, T., Yasuda, Y., Yama-guchi, H., Kasahara, Y.
Published in Радіофізика та електроніка (2012)