Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
S. Asai and K. Shigekuni and T. Sanuki and S. Orito,Search for short-lived neutral bosons in orthopositronium decay,Physics Letters B,0370-2693,Elsevier BV,1994-03,323,1,90-94,https://cir.nii.ac.jp/crid/1362544420426016000,https://doi.org/10.1016/0370-2693(94)90459-6