著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Ludvig Löwemark and Friedrich Werner,Dating errors in high-resolution stratigraphy: a detailed X-ray radiograph and AMS- 14 C study of Zoophycos burrows,Marine Geology,0025-3227,Elsevier BV,2001-07,177,3-4,191-198,https://cir.nii.ac.jp/crid/1362262944980592256,https://doi.org/10.1016/s0025-3227(01)00167-0