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)
J. W. Layman,Expansion of analytic functions in exponential polynomials,Proceedings of the American Mathematical Society,0002-9939,American Mathematical Society (AMS),1969,22,2,519-522,https://cir.nii.ac.jp/crid/1361699995484845824,https://doi.org/10.1090/s0002-9939-1969-0241636-3