@article{oai:shizuoka.repo.nii.ac.jp:00010019,
 author = {白井, 久雄},
 journal = {静岡地学},
 month = {Nov},
 note = {application/pdf},
 pages = {13--21},
 title = {掛川市桶田に見られる五百済火山灰層について},
 volume = {90},
 year = {2004}
}