A theorem on the complete set of isomorphisms for genepal elliptic problems with a parameter
English version (Springer): Ukrainian Mathematical Journal 34 (1982), no. 5, pp 523-526.
Citation Example: Roitberg Ya. A., Serdyuk V. A. A theorem on the complete set of isomorphisms for genepal elliptic problems with a parameter // Ukr. Mat. Zh. - 1982. - 34, № 5. - pp. 641—644.
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