2017
Том 69
№ 9

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Approximation of periodic functions of two variables by Vallée-Poussin sums

Stepanets O. I., Zaderei P. V.

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English version (Springer): Ukrainian Mathematical Journal 30 (1978), no. 1, pp 23-31.

Citation Example: Stepanets O. I., Zaderei P. V. Approximation of periodic functions of two variables by Vallée-Poussin sums // Ukr. Mat. Zh. - 1978. - 30, № 1. - pp. 33–44.

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