Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Itaki Takuya,Elutriation technique for the extraction of radiolarian skeletons from sandy sediment,Fossils,00229202,Palaeontological Society of Japan,2003,73,0,38-41,https://cir.nii.ac.jp/crid/1390282679412454528,https://doi.org/10.14825/kaseki.73.0_38