Geodesic
Approximating periodic functions in Hölder type metrics by the Fourier sums and the Riesz means
Zapiski Nauchnykh Seminarov POMI, Analytical theory of numbers and theory of functions. Part 22, Tome 350 (2007), pp. 70-88 
V. V. Zhuk. Approximating periodic functions in Hölder type metrics by the Fourier sums and the Riesz means. Zapiski Nauchnykh Seminarov POMI, Analytical theory of numbers and theory of functions. Part 22, Tome 350 (2007), pp. 70-88. http://geodesic.mathdoc.fr/item/ZNSL_2007_350_a5/
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     author = {V. V. Zhuk},
     title = {Approximating periodic functions in {H\"older} type metrics by the {Fourier} sums and the {Riesz} means},
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     pages = {70--88},
     year = {2007},
     volume = {350},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2007_350_a5/}
}
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