@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033828, author = {Murai, Isamu}, issue = {2}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Aug}, note = {application/pdf}, pages = {133--253}, title = {7. A Study of the Textural Characteristics of Pyroclastic Flow Deposits in Japan}, volume = {39}, year = {1961} }