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@article{DAN_1961_141_5_a11, author = {P. L. Ul'yanov}, title = {Exact {Weyl} factors for unconditional convergence}, journal = {Doklady Akademii Nauk}, pages = {1048--1049}, publisher = {mathdoc}, volume = {141}, number = {5}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_141_5_a11/} }
P. L. Ul'yanov. Exact Weyl factors for unconditional convergence. Doklady Akademii Nauk, Tome 141 (1961) no. 5, pp. 1048-1049. http://geodesic.mathdoc.fr/item/DAN_1961_141_5_a11/