@article{IM2_1967_1_5_a9,
     author = {G. A. Fomin},
     title = {Lebesgue constants of linear methods of summability for {Fourier
}},
     journal = {Izvestiya. Mathematics },
     pages = {1081--1097},
     publisher = {mathdoc},
     volume = {1},
     number = {5},
     year = {1967},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1967_1_5_a9/}
}