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@article{TM_2013_280_a20, author = {N. N. Kholshchevnikova}, title = {Countably multiple null series}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {288--299}, publisher = {mathdoc}, volume = {280}, year = {2013}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TM_2013_280_a20/} }
N. N. Kholshchevnikova. Countably multiple null series. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Orthogonal series, approximation theory, and related problems, Tome 280 (2013), pp. 288-299. http://geodesic.mathdoc.fr/item/TM_2013_280_a20/