@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}
}