@article{oai:repo.qst.go.jp:00044120, author = {Muramatsu, Yasuyuki and Ruhm, Werner and Yoshida, Satoshi and Tagami, Keiko and Uchida, Shigeo and Wirth, Erich and 村松 康行 and 吉田 聡 and 田上 恵子 and 内田 滋夫}, issue = {14}, journal = {Environmental Science & Technology}, month = {Jun}, pages = {2913--2917}, title = {Concentrations of 239Pu and 240Pu and their isotopic ratios determined by ICP-MS in soils collected from the Chernobyl 30-km zone}, volume = {34}, year = {2000} }