@article{SM_1988_61_2_a11,
     author = {S. F. Lukomskii},
     title = {Necessary conditions for sets of uniqueness of {Walsh} series with
},
     journal = {Sbornik. Mathematics},
     pages = {461--470},
     publisher = {mathdoc},
     volume = {61},
     number = {2},
     year = {1988},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1988_61_2_a11/}
}