Kuz’min, A. G. On the behaviour of the characteristics of equations of mixed type near the line of degeneration. (Russian) Zbl 0486.35005 Differ. Uravn. 17, 2052-2063 (1981). MSC: 35A30 35M99 PDFBibTeX XMLCite \textit{A. G. Kuz'min}, Differ. Uravn. 17, 2052--2063 (1981; Zbl 0486.35005)
Bezhanishvili, D. A. The Cauchy problem for a certain quasilinear equation. (Russian) Zbl 0481.35063 Differ. Uravn. 17, 18-24 (1981). MSC: 35L80 35L70 47J05 35A05 PDFBibTeX XMLCite \textit{D. A. Bezhanishvili}, Differ. Uravn. 17, 18--24 (1981; Zbl 0481.35063)
Burchuladze, T. V.; Bezhuashvili, Yu. A. Three-dimensional dynamic problems of conjugate theory of elasto- thermodiffusion. (Russian) Zbl 0474.73128 Differ. Uravn. 17, 1446-1455 (1981). MSC: 74A15 74B99 74H99 35K05 74F05 35K45 PDFBibTeX XMLCite \textit{T. V. Burchuladze} and \textit{Yu. A. Bezhuashvili}, Differ. Uravn. 17, 1446--1455 (1981; Zbl 0474.73128)
Erugin, N. P.; Smirnov, M. M. Functionally invariant solutions of differential equations. (English) Zbl 0471.35020 Differ. Uravn. 17, 853-865 (1981). MSC: 35G05 35C15 35B40 PDFBibTeX XMLCite \textit{N. P. Erugin} and \textit{M. M. Smirnov}, Differ. Uravn. 17, 853--865 (1981; Zbl 0471.35020)
Meredov, M. Boundary value problems for a system of many-dimensional mixed equations. (Russian) Zbl 0468.35067 Differ. Uravn. 17, 886-892 (1981). MSC: 35M99 35J25 35L20 PDFBibTeX XMLCite \textit{M. Meredov}, Differ. Uravn. 17, 886--892 (1981; Zbl 0468.35067)