1. Aizawa, K., Y. Ogawa, and T. Ishido, Groundwater flow and hydrothermal systems within volcanic edifices: Delineation by electric self-potential and magnetotellurics, J. Geophys. Res.—Solid Earth, 114, B01208, doi:10.1029/2008jb005910, 2009a.
2. Aizawa, K., Y. Ogawa, M. Mishina, K. Takahashi, S. Nagaoka, N. Takagi, S. Sakanaka, and T. Miura, Structural controls on the 1998 volcanic unrest at Iwate volcano: Relationship between a shallow, electrically resistive body and the possible ascent route of magmatic fluid, J. Volcanol. Geotherm. Res., 187(1–2), 131–139, doi:10.1016/j.jvolgeores.2009.08.009, 2009b.
3. Aizawa, K., W. Kanda, Y. Ogawa, M. Iguchi, A. Yokoo, H. Yakiwara, and T. Sugano, Temporal changes in electrical resistivity at Sakurajima volcano from continuous magnetotelluric observations, J. Volcanol. Geotherm. Res., 199(1–2), 165–175, doi:10.1016/j.jvolgeores.2010.11.003, 2011.
4. Aizawa, K., T. Koyama, H. Hase, M. Uyeshima, W. Kanda, M. Utsugi, R. Yoshimura, Y. Yamaya, T. Hashimoto, K. Yamazaki, S. Komatsu, A. Watanabe, K. Miyakawa, and Y. Ogawa, Three dimensional resistivity structure and magma pluming system of Kirishima volcanoes as inferred from broad-band magnetotelluric data, J. Geophys. Res., (submitted).
5. Brenguier, F., N. M. Shapiro, M. Campillo, V. Ferrazzini, Z. Duputel, O. Coutant, and A. Nercessian, Towards forecasting volcanic eruptions using seismic noise, Nat. Geosci., 1(2), 126–130, doi:10.1038/ngeo104, 2008.