@misc{oai:repo.qst.go.jp:00067245,
 author = {Tokonami, Shinji and Zhuo, Weihai and Yamada, Yuji and 床次 眞司 and 卓 維海 and 山田 裕司},
 month = {May},
 note = {7th International symposium NATURAL RADIATION ENVIRONMENT},
 title = {Characteristics of the practical thoron chamber at NIRS, Japan},
 year = {2002}
}