%0 Journal Article %A S. S. Volosivets %A A. A. Tyuleneva %T Estimates of best approximations of transformed Fourier series in $L^p$-norm and $p$-variational norm %J Fundamentalʹnaâ i prikladnaâ matematika %D 2018 %P 111-126 %V 22 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2018_22_1_a5/ %G ru %F FPM_2018_22_1_a5