@article{oai:tsukuba.repo.nii.ac.jp:00051057, author = {青山, 道夫 and AOYAMA, Michio}, journal = {Scientific Reports}, month = {May}, title = {240Pu/239Pu and 242Pu/239Pu atom ratios of Japanese monthly atmospheric deposition samples during 1963?1966}, volume = {9}, year = {2019}, yomi = {アオヤマ, ミチオ} }