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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 31, No. 3, pp. 227–236, May–June, 1979.
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Baranovskii, F.T. A boundary-value problem for a hyperbolic equation with degenerate principal part. Ukr Math J 31, 177–184 (1979). https://doi.org/10.1007/BF01089015
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DOI: https://doi.org/10.1007/BF01089015