@article{oai:repo.qst.go.jp:00044600,
 author = {Fujikawa, Yoko and Shimo, Michikuni and Yonehara, Hidenori and et.al and 下 道國 and 米原 英典},
 issue = {2},
 journal = {Japanese Journal of Health Physics},
 month = {Jun},
 pages = {99--108},
 title = {On the Optimal Regulation of Technologically- Enhanced Naturally Occurring Radioactive Materials},
 volume = {41},
 year = {2006}
}