Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Satsuma Junkichi and Kaup David J.,A Bäcklund Transformation for a Higher Order Korteweg-De Vries Equation,Journal of the Physical Society of Japan,00319015,THE PHYSICAL SOCIETY OF JAPAN,1977,43,2,692-697,https://cir.nii.ac.jp/crid/1390282679167077504,https://doi.org/10.1143/jpsj.43.692