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Translated from Sibirskii Matematicheskii Zhurnal, Vol. 9, No. 3, pp. 1093–1106, September–October, 1968.
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Il'in, V.A. The generalized treatment of the principle of localization for fourier series in fundamental systems of functions. Sib Math J 9, 812–820 (1968). https://doi.org/10.1007/BF01041166
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DOI: https://doi.org/10.1007/BF01041166