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) T. Maeno and M. Fujikawa and J. Kataoka and Y. Nishihara and S. Orito and K. Shigekuni and Y. Watanabe,A search for massive neutral bosons in orthopositronium decay,Physics Letters B,0370-2693,Elsevier BV,1995-06,351,4,574-578,https://cir.nii.ac.jp/crid/1363670320402770176,https://doi.org/10.1016/0370-2693(95)00425-k