Vishik, M. I.; Lyusternik, L. A. Regular degeneration and boundary layer for linear differential equations with small parameter. (Reguläre Ausartung und Grenzschicht für lineare Differentialgleichungen mit einem kleinen Parameter.) (Russian) Zbl 0087.29602 Usp. Mat. Nauk 12, No. 5(77), 3-122 (1957). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 5 ReviewsCited in 279 Documents MSC: 34-XX Ordinary differential equations Keywords:ordinary differential equations PDFBibTeX XMLCite \textit{M. I. Vishik} and \textit{L. A. Lyusternik}, Usp. Mat. Nauk 12, No. 5(77), 3--122 (1957; Zbl 0087.29602)