@misc{oai:repo.qst.go.jp:00062274,
 author = {Furukawa, Masahide and Zhuo, Weihai and Tokonami, Shinji and 床次 眞司},
 month = {Oct},
 note = {8th international symposium on the natural radiation environment},
 title = {Enhanced natural radiation level due to east Asian Eolian dust:a case of Ryukyu islands, Japan},
 year = {2007}
}