Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Masahiro Teshima,The Highest Energy Cosmic Rays,Progress of theoretical physics = 理論物理学の進歩,0033068X,Kyoto : Publication Office,2001,[106],Sup.143,114-124,https://cir.nii.ac.jp/crid/1522543654814839424,https://doi.org/10.1143/ptps.143.114