@misc{oai:nipr.repo.nii.ac.jp:00010419,
 author = {Suganuma, Yusuke and Okada, Makoto and Horie, Kenji and Kaiden, Hiroshi and Takehara, Mami and Senda, Ryoko and Kimura, Jun-Ichi and Kawamura, Kenji and Kazaoka, Osamu and Martin J. Head},
 month = {Dec},
 title = {Matuyama-Brunhes boundary age constrained by SHRIMP U-Pb zircon dating of a widespread tephra},
 year = {2014}
}