Palekas, E. On solvability of the first boundary value problem for a class of elliptic systems of equations. (Russian. English summary) Zbl 0636.35022 Differ. Uravn. Primen. 40, 60-67 (1987). MSC: 35J55 35J25 35A05 PDFBibTeX XMLCite \textit{E. Palekas}, Differ. Uravn. Primen. 40, 60--67 (1987; Zbl 0636.35022)
Palekas, Eh. On the first boundary value problem for a non strongly elliptic system. (Russian. English summary) Zbl 0586.35039 Differ. Uravn. Primen. 36, 47-54 (1984). MSC: 35J45 35J70 35B30 35A05 PDFBibTeX XMLCite \textit{Eh. Palekas}, Differ. Uravn. Primen. 36, 47--54 (1984; Zbl 0586.35039)
Palekas, Ehugeniyus On the nature of solvability of the first boundary value problem for a non-strongly elliptic system. (Russian. English summary) Zbl 0565.35035 Differ. Uravn. Primen. 34, 40-59 (1983). MSC: 35J55 35J25 35A05 35A35 PDFBibTeX XMLCite \textit{E. Palekas}, Differ. Uravn. Primen. 34, 40--59 (1983; Zbl 0565.35035)
Palekas, Eh. On the Dirichlet problem for an elliptic system. (Russian) Zbl 0512.35034 Differ. Uravn. Primen. 30, 47-56 (1981). MSC: 35J55 35J25 35E99 35A05 PDFBibTeX XMLCite \textit{Eh. Palekas}, Differ. Uravn. Primen. 30, 47--56 (1981; Zbl 0512.35034)