Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
W.G. Graham,Negative hydrogen ion production by low energy hydrogen atom bombardment of surfaces,Physics Letters A,0375-9601,Elsevier BV,1979-09,73,3,186-188,https://cir.nii.ac.jp/crid/1360855569548692480,https://doi.org/10.1016/0375-9601(79)90703-5