@misc{oai:repo.qst.go.jp:00060553, author = {Kim, Chang-Kyu and Kim, Y.J. and M., Lee D. and U., Chang B. and Rho, B.H. and Tokonami, Shinji and 床次 眞司}, month = {Sep}, note = {6th International Conference on High Levels of Natural Radiation and Radon Areas}, title = {Indoor radon, thoron and thoron daughter concentrations in Korea}, year = {2004} }