@article{IVM_1964_6_a22,
     author = {B. M. Yakhnin},
     title = {An estimate for the least upper bound of arithmetic mean {Fourier} sums of {Legendre} polynomials.},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {179--187},
     publisher = {mathdoc},
     number = {6},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1964_6_a22/}
}