Deng, Shouan; Zhou, Qinde A problem with a high order turning point. (English) Zbl 0721.34068 Northeast. Math. J. 6, No. 1, 65-74 (1990). MSC: 34E20 PDFBibTeX XMLCite \textit{S. Deng} and \textit{Q. Zhou}, Northeast. Math. J. 6, No. 1, 65--74 (1990; Zbl 0721.34068)
Li, Yong; Zhou, Qinde; Deng, Shouan Asymptotic behavior of solutions for singularly perturbed boundary value problems with high order turning points. (English) Zbl 0704.34070 Northeast. Math. J. 5, No. 2, 221-226 (1989). MSC: 34E20 34E15 34B99 PDFBibTeX XMLCite \textit{Y. Li} et al., Northeast. Math. J. 5, No. 2, 221--226 (1989; Zbl 0704.34070)
Zhou, Qinde; Deng, Shouan; Li, Yong Problems with higher-order turning points. (Chinese. English summary) Zbl 0988.34541 Acta Sci. Nat. Univ. Jilinensis 1989, No. 1, 23-32 (1989). MSC: 34E20 PDFBibTeX XMLCite \textit{Q. Zhou} et al., Acta Sci. Nat. Univ. Jilinensis 1989, No. 1, 23--32 (1989; Zbl 0988.34541)