Halanay, Aristide; Kurzweil, J. A theory of invariant manifolds for flows. (English) Zbl 0169.11403 Rev. Roum. Math. Pures Appl. 13, 1079-1087 (1968). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:ordinary differential equations PDF BibTeX XML Cite \textit{A. Halanay} and \textit{J. Kurzweil}, Rev. Roum. Math. Pures Appl. 13, 1079--1087 (1968; Zbl 0169.11403) OpenURL