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) AKCAKAYA HR,Population cycles of mammals : evidence for a ratio-dependent predation hypothesis,Ecol Monogr,,,1992,62,,119142,https://cir.nii.ac.jp/crid/1570572699353301632,