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Tashkent State University. Translated from Funktsional'nyi Analiz i Ego Prilozheniya, Vol. 29, No. 3, pp. 16–24, July–September, 1995.
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Ikromov, I.A. Estimates for the Fourier transform of the indicator function for nonconvex domains. Funct Anal Its Appl 29, 161–167 (1995). https://doi.org/10.1007/BF01077049
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DOI: https://doi.org/10.1007/BF01077049