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) Caleb I. Fassett and James W. Head,The timing of martian valley network activity: Constraints from buffered crater counting,Icarus,0019-1035,Elsevier BV,2008-05,195,1,61-89,https://cir.nii.ac.jp/crid/1362544421226697216,https://doi.org/10.1016/j.icarus.2007.12.009