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) Gregory Walter Horndeski,Second-order scalar-tensor field equations in a four-dimensional space,International Journal of Theoretical Physics,0020-7748,Springer Science and Business Media LLC,1974-09,10,6,363-384,https://cir.nii.ac.jp/crid/1361699994972380928,https://doi.org/10.1007/bf01807638