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) 高橋 淳也,The gap of the eigenvalues for $p$-forms and harmonic $p$-forms of constant length,Journal of Geometry and Physics 54,,,2005,,,476-484,https://cir.nii.ac.jp/crid/1010282256867399554,