@article{oai:repo.qst.go.jp:00045526,
 author = {Yasuoka, Yumi and Kawada, Yusuke and Nagahama, Hiroyuki and Omori, Yasutaka and Ishikawa, Tetsuo and Tokonami, Shinji and Shinogi, Masaki and 安岡 由美 and 石川 徹夫 and 床次 眞司},
 issue = {6/7},
 journal = {Physics and Chemistry of the Earth},
 month = {Apr},
 pages = {431--434},
 title = {Preseismic changes in atmospheric radon concentration and crustal strain},
 volume = {34},
 year = {2009}
}