Lebesgue constants of arithmetic means of double Fourier--Legendre sums
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1999), pp. 37-46.

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A. D. Nakhman. Lebesgue constants of arithmetic means of double Fourier--Legendre sums. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1999), pp. 37-46. http://geodesic.mathdoc.fr/item/IVM_1999_8_a5/

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