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Next article Uniform Asymptotic Expansions for Wave Propagation and Diffracton ProblemsDonald LudwigDonald Ludwighttps://doi.org/10.1137/1012077PDFBibTexSections ToolsAdd to favoritesExport CitationTrack CitationsEmail SectionsAbout[1] A. Erdélyi, Asymptotic expansions, Dover Publications Inc., New York, 1956vi+108 MR0078494 0070.29002 Google Scholar[2] F. W. J. Olver, The asymptotic expansion of Bessel functions of large order, Philos. Trans. Roy. Soc. London. Ser. A., 247 (1954), 328–368 MR0067250 0070.30801 CrossrefGoogle Scholar[3] C. Chester, , B. Friedman and , F. Ursell, An extension of the method of steepest descents, Proc. Cambridge Philos. Soc., 53 (1957), 599–611 MR0090690 0082.28601 CrossrefGoogle Scholar[4] Norman Bleistein, Uniform asymptotic expansions of integrals with stationary point near algebraic singularity, Comm. Pure Appl. 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