Abdu, M. A., S. Ananthakrishman, E. F. Coutinho, B. A. Krishnan, and S. Reis,
Azimuthal drift and precipitation of electrons into the South Atlantic geomagnetic
anomaly during a SC magnetic storm, J. Geophys. Res., 78, 25, 5830 - 5836, 1973.
Detrick, D.L. and T.J. Rosenberg, A phased-array radiowave imager for studies of
cosmic noise absorption, Radio Science, Vol. 25, No. 4, 325-338, 1990.
Gledhill, J. A., Aeronomic effects in the South Atlantic anomaly, Rev. Geophys. Space
Res., 14, 2, 173-187, 1976.
Makita K., Study of Geomagnetic Hole （地磁気ホールの研究）,
Aichi Shuppan, 2007 (Japanese only & Chapter 1 only).
Nishino, M., Y. Tanaka, T. Oguti, H. Yamagishi and J.A. Holtet, Initial observation
results with imaging riometer at Ny-Alesund (L=16), Proc. NIPR Symposium on
Upper Atmospheric Physics, No. 6, 47-61, 1993.
Nishino, M., K. Makita, K. Yumoto, F. Rodrigues, N.J. Schuch and M.A. Abdu, Unusual
ionospheric absorption characterizing energetic electron precipitation into the South
Atlantic magnetic Anomaly, Earth Planets Space, 54, 907-916, 2002.
Nishino, M., K. Makita, M. Sato, Y. Katoh, M. Hoshino, N.J. Schuch, A. Foppiano, R.
Monreal, Network observations of imaging riometers in South America, Bulletin of
Science and Technology Takushoku University, Vol.9, No. 2, 31-36, 2004 (Japanese
with English abstract).
Nishino, M., K. Makita, K. Yumoto, N.J. Schuch, and M.A. Abdu, Energetic particle
precipitation in the Brazilian geomagnetic anomaly during the “Bastille Day Storm”
of July 2000, Earth Planets Space, 58, 607-616, 2006.
Nishino, M., Y. Katoh, M. Sato, K. Makita, M. Hoshino, T. Koide, K. Toya, T. Okawa, N.J.
Schuch, R. Monreal, and A. Foppiano, Multiple imaging riometer observations at
low and mid latitudes in the northern and southern hemispheres-Cosmic noise
absorption phenomena during the geomagnetic storm on December 2006-, Bulletin
of Science and Engineering Takushoku University, Vol.10, No.1, 53-60, 2007
(Japanese with English abstract).
Obara, T., M. Den, Y. Miyoshi, and A. Morioka, Energetic electron variation in the outer
radiation zone during early May 1998 magnetic storm, J. Atomos. Solar-Terr. Phys.,
62, 1405-1412, 2000.
Paulikas. G.A., Precipitation of particles at low and middle latitudes, Rev. Geophysics
and Space Physics, 13, 709-734, 1975
Pinto Jr., O. and W. D. Gonzalez, Energetic electron precipitation at the South Atlantic
magnetic anomaly: a review, J. Atmos. Terr. Phys., 51, 5, 351-365, 1989.
Sato, M., H. Yamagishi, Y. Kato and M. Nishino, Quick-look system of auroral
absorption images by imaging riometer, Antarctic Rec., 36, 2, 251-267, 1992
(Japanese with English abstract).