Hufford, George Banach spaces and the perturbation of ordinary differential equations. (English) Zbl 0073.31101 Ann. Math. Stud. 36, 173-195 (1956). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document Keywords:Ordinary Differential Equations; Difference Equations PDFBibTeX XMLCite \textit{G. Hufford}, Ann. Math. Stud. 36, 173--195 (1956; Zbl 0073.31101)