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) John D. Rummel,Planetary protection policy overview and application to future missions,Advances in Space Research,0273-1177,Elsevier BV,1989-01,9,6,181-184,https://cir.nii.ac.jp/crid/1360576122588385536,https://doi.org/10.1016/0273-1177(89)90227-5