@misc{oai:repo.qst.go.jp:00060547, author = {Zhuo, Weihai and Tokonami, Shinji and 卓 維海 and 床次 眞司}, month = {Sep}, note = {6th International Conference on High Levels of Natural Radiation and Radon Areas}, title = {Convenient Methods for Evaluation of Indoor Thoron Progeny Concentrations}, year = {2004} }