@article{oai:hirogaku-u.repo.nii.ac.jp:00000207,
 author = {Kitamura, Shigeru},
 issue = {10},
 journal = {弘前学院大学社会福祉学部研究紀要},
 month = {Mar},
 note = {Article, 弘前学院大学社会福祉学部研究紀要. 10, 2010, p.24-28},
 pages = {24--28},
 title = {Two AMS Radiocarbon dates for the TBJ tephra from Ilopango Caldera, El Salvador, Central America.},
 year = {2010}
}