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Translated from Matematicheskie Zametki, Vol. 54, No. 6, pp. 132–134, December, 1993.
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Kalita, E.A. Conditions for the existence of a fundamental solution of quasilinear elliptic equations and higher-order systems with discontinuous coefficients. Math Notes 54, 1274–1276 (1993). https://doi.org/10.1007/BF01209090
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DOI: https://doi.org/10.1007/BF01209090