Woodruff, S. L. A uniformly-valid asymptotic solution to a matrix system of ordinary differential equations and a proof of its validity. (English) Zbl 0838.34072 Stud. Appl. Math. 94, No. 4, 393-413 (1995). Reviewer: V.V.Strygin (Voronezh) MSC: 34E05 34M40 PDFBibTeX XMLCite \textit{S. L. Woodruff}, Stud. Appl. Math. 94, No. 4, 393--413 (1995; Zbl 0838.34072) Full Text: DOI
Wong, R.; Li, H. Asymptotic expansions for second-order linear difference equations. II. (English) Zbl 0780.39005 Stud. Appl. Math. 87, No. 4, 289-324 (1992). Reviewer: H.Länger (Wien) MSC: 39A10 41A60 PDFBibTeX XMLCite \textit{R. Wong} and \textit{H. Li}, Stud. Appl. Math. 87, No. 4, 289--324 (1992; Zbl 0780.39005) Full Text: DOI
Lange, Charles G.; Smith, Donald R. Singular perturbation analysis of integral equations. (English) Zbl 0654.45001 Stud. Appl. Math. 79, No. 1, 1-63 (1988). Reviewer: S.Milusheva MSC: 45B05 45M05 45J05 PDFBibTeX XMLCite \textit{C. G. Lange} and \textit{D. R. Smith}, Stud. Appl. Math. 79, No. 1, 1--63 (1988; Zbl 0654.45001) Full Text: DOI