@article{FPM_2018_22_1_a5,
     author = {S. S. Volosivets and A. A. Tyuleneva},
     title = {Estimates of best approximations of transformed {Fourier} series in $L^p$-norm and $p$-variational norm},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {111--126},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2018_22_1_a5/}
}