著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Kelley, A.","Using change of variables to find invariant manifolds of systems of ordinary differential equations in a neighborhood of a critical point, periodic orbit, or periodic surface : history of the problem",,"Dept. of Mathematics, University of California",1963,Technical report,,,,https://cir.nii.ac.jp/crid/1130000797166592384