@article{MZM_2019_105_4_a5,
     author = {M. G. Magomed-Kasumov},
     title = {A {Sobolev} {Orthogonal} {System} of {Functions} {Generated} by a {Walsh} {System}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {545--552},
     publisher = {mathdoc},
     volume = {105},
     number = {4},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2019_105_4_a5/}
}