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)
James M. Nester,A new gravitational energy expression with a simple positivity proof,Physics Letters A,0375-9601,Elsevier BV,1981-06,83,6,241-242,https://cir.nii.ac.jp/crid/1363107371153726336,https://doi.org/10.1016/0375-9601(81)90972-5