@article{MZM_1983_33_1_a10,
     author = {V. A. Skvortsov},
     title = {Certain properties of the {Haar} double series with everywhere convergent spherical partial sums},
     journal = {Matemati\v{c}eskie zametki},
     pages = {89--95},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1983_33_1_a10/}
}