Eigenfunction expansion of some self-adjoint operators corresponding to general elliptic problems with an eigenvalue in the boundary conditions
English version (Springer): Ukrainian Mathematical Journal 19 (1967), no. 1, pp 7-19.
Citation Example: Barkovsky V. V. Eigenfunction expansion of some self-adjoint operators corresponding to general elliptic problems with an eigenvalue in the boundary conditions // Ukr. Mat. Zh. - 1967. - 19, № 1. - pp. 9–24.
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