1. K. Koike, Geomorphology of Abukuma Plateaus, Japanese Geomorphology 3 Tohoku, University of Tokyo Press, 2005, p. 66 (in Japanese).
2. Kikanchirigaku;Kimura;Jap. Quarter. J. Geomorphol.,1993
3. Chemical isolation of quartz for measurement of in-situ -produced cosmogenic nuclides
4. Chlorine-36 in granite samples from the Hiroshima A-bomb site
5. I. Kaneoka, M. Kusakabe, S. Tsunogai, K. Notsu, Y. Hirao, S. Matsuo, O. Matsubaya, Y. Matsuhisa, E. Wada, in: S. Matsuo (Ed.), Geochemistry, Koudansha, Tokyo, 1995, p. 252 (in Japanese).