About Koyama, Junji
About Division of Natural History Sciences, Graduate School of Science, Hokkaido University
About Tsuzuki, Motohiro
About Division of Natural History Sciences, Graduate School of Science, Hokkaido University
About Yomogida, Kiyoshi
About Division of Natural History Sciences, Graduate School of Science, Hokkaido University
About Yoshizawa, Kazunori
About Division of Natural History Sciences, Graduate School of Science, Hokkaido University
About Journal of the Hokkaido University, Faculty of Science, Series VII: Geophysics