@article{SM_2020_211_6_a3,
     author = {M. G. Grigoryan},
     title = {Functions with universal {Fourier-Walsh} series},
     journal = {Sbornik. Mathematics},
     pages = {850--874},
     year = {2020},
     volume = {211},
     number = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2020_211_6_a3/}
}