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) C. F. A. van Os and R. M. A. Heeren and P. W. van Amersfoort,Negative ion formation at a barium surface in contact with a hydrogen plasma,Applied Physics Letters,0003-6951,AIP Publishing,1987-11-09,51,19,1495-1497,https://cir.nii.ac.jp/crid/1361137045486815232,https://doi.org/10.1063/1.98613