@article{oai:air.repo.nii.ac.jp:00004620,
 author = {Sato, Tokiyuki and Saito, Takato and Takahashi, Hajime and Higuchi, Takeshi},
 issue = {4},
 journal = {Journal of the Mining College, Akita University. Ser. A, Mining geology},
 month = {Mar},
 pages = {151--162},
 title = {Calcareous Nannofossil Biostratigraphy of the Sesaoka and Tentokuji Formations, Central Akita area, Northern Japan},
 volume = {8},
 year = {2001}
}