@article{oai:nipr.repo.nii.ac.jp:00015542, author = {Horie, Kenji and Hidaka, Hiroshi}, issue = {5}, journal = {Island Arc, Island Arc}, month = {Sep}, title = {Development of U-Pb dating of uraninite using a secondary ion mass spectrometer: Selection of reference material and establishment of calibration method}, volume = {28}, year = {2019} }