Literature Cited
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Additional information
Translated from Sibirskii Matematicheskii Zhurnal, Vol. 9, No. 3, pp. 700–712, May–June, 1968.
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Yanushauskas, A. On the behavior in the neighborhood of the degeneracy hypersurface of solutions of an eleiptic equation the order of which degenerates. Sib Math J 9, 524–533 (1968). https://doi.org/10.1007/BF01040917
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DOI: https://doi.org/10.1007/BF01040917