@article{oai:nied-repo.bosai.go.jp:00002093, author = {Yukio FUJINAWA and Takumi MATSUMOTO and Kozo TAKAHASHI and IITAKA Hiiroshi and Naoko KASAI and NAKANO HIiroshi and Sohjun SATO and Toshiyuki SAITO and Takuya DOI}, issue = {231}, journal = {防災科学技術研究所 研究資料}, month = {Apr}, pages = {1--41}, title = {Observation of Electric Field Variations at Miyake-jima Volcano}, year = {2002} }