Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yuji Kodama and Tosiya Taniuti,Higher Order Approximation in the Reductive Perturbation Method-3-The Weakly Dissipative System,Journal of the Physical Society of Japan,00319015,Tokyo : Physical Society of Japan,1979-11,47,5,p1706-1716,https://cir.nii.ac.jp/crid/1522825130486011392,