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) David C. M. Dickson and Howard R. Waters,Gamma Processes and Finite Time Survival Probabilities,ASTIN Bulletin,0515-0361,Cambridge University Press (CUP),1993-11,23,2,259-272,https://cir.nii.ac.jp/crid/1361699995196995840,https://doi.org/10.2143/ast.23.2.2005094