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) E. M. Purcell,Spontaneous Emission Probabilities at Radio Frequencies,NATO ASI Series,0258-1221,Springer US,1995,,,839-839,https://cir.nii.ac.jp/crid/1361699994273104384,https://doi.org/10.1007/978-1-4615-1963-8_40