Abdikalikova, G. A.; Assanova, A. T.; Shekerbekova, Sh. T. Nonlocal problem for fourth-order loaded hyperbolic equations. (English. Russian original) Zbl 07659027 Russ. Math. 66, No. 8, 1-18 (2022); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2022, No. 8, 3-23 (2022). MSC: 35L35 35A01 35A02 PDF BibTeX XML Cite \textit{G. A. Abdikalikova} et al., Russ. Math. 66, No. 8, 1--18 (2022; Zbl 07659027); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2022, No. 8, 3--23 (2022) Full Text: DOI OpenURL
Mamedov, Il’gar Gurbat On a nonclassical interpretation of the four-dimensional Goursat problem for a hyberbolic equation. (Russian. English summary) Zbl 1474.35455 Vladikavkaz. Mat. Zh. 17, No. 4, 59-66 (2015). MSC: 35L35 PDF BibTeX XML Cite \textit{I. G. Mamedov}, Vladikavkaz. Mat. Zh. 17, No. 4, 59--66 (2015; Zbl 1474.35455) Full Text: MNR OpenURL