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Translated from Ukrainskii Matematicheskii Zhurnal, Vol.31, No. 6, pp. 666–674, November–December, 1979.
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Garkusha, V.I. An approach to the solution of equations of the first kind with symmetric operators of Fredholm type. Ukr Math J 31, 513–520 (1979). https://doi.org/10.1007/BF01092531
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DOI: https://doi.org/10.1007/BF01092531