Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yoji Aizawa,Kinetic Laws of Clustering Motions in N-Body Systems,Progress of theoretical physics = 理論物理学の進歩,0033068X,Kyoto : Publication Office,2000-07,103,Sup.139,1-11,https://cir.nii.ac.jp/crid/1523951028261796352,https://doi.org/10.1143/ptps.139.1