Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Asada Hideki,Progress in Observational Two-Body Problem : Discovery of the Exact Solution for an Unsolved Classical Problem,Butsuri,00290181,The Physical Society of Japan,2006-08-05,61,8,581-588,https://cir.nii.ac.jp/crid/1390855190137556224,https://doi.org/10.11316/butsuri.61.8_581