@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033399, author = {Momose, Kan'ichi and Kobayashi, Kunio and Minagawa, Koichi and Machida, Mizuo}, issue = {6}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Mar}, note = {application/pdf}, pages = {1275--1292}, title = {62. Identification of Tephra by Means of Ferromagnetic Minerals in Pumice}, volume = {46}, year = {1969} }