Vityuk, A. N. Solvability of a class of boundary-value problems for systems of hyperbolic differential equations. (English. Russian original) Zbl 0555.35089 Ukr. Math. J. 35, 524-526 (1983); translation from Ukr. Mat. Zh. 35, No. 5, 611-613 (1983). Reviewer: B.Nowak MSC: 35L70 35L20 35A05 PDF BibTeX XML Cite \textit{A. N. Vityuk}, Ukr. Math. J. 35, 524--526 (1983; Zbl 0555.35089); translation from Ukr. Mat. Zh. 35, No. 5, 611--613 (1983) Full Text: DOI
Vladimirov, D. A. Complete continuity of integral operators. (English. Russian original) Zbl 0195.13503 Sib. Math. J. 8(1967), 576-589 (1968); translation from Sib. Mat. Zh. 8, 764-781 (1967). PDF BibTeX XML Cite \textit{D. A. Vladimirov}, Sib. Math. J. 8, 576--589 (1968; Zbl 0195.13503); translation from Sib. Mat. Zh. 8, 764--781 (1967) Full Text: DOI