@article{MZM_1993_53_6_a1,
     author = {S. S. Volosivets},
     title = {Approximation of functions of bounded $p$-variation by means of polynomials of the {Haar} and {Walsh} systems},
     journal = {Matemati\v{c}eskie zametki},
     pages = {11--21},
     publisher = {mathdoc},
     volume = {53},
     number = {6},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1993_53_6_a1/}
}