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@article{DAN_1962_144_5_a9, author = {V. P. Mikhailov}, title = {On {Riesz} bases in $\mathscr{L}_2(0,1)$}, journal = {Doklady Akademii Nauk}, pages = {981--984}, publisher = {mathdoc}, volume = {144}, number = {5}, year = {1962}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1962_144_5_a9/} }
V. P. Mikhailov. On Riesz bases in $\mathscr{L}_2(0,1)$. Doklady Akademii Nauk, Tome 144 (1962) no. 5, pp. 981-984. http://geodesic.mathdoc.fr/item/DAN_1962_144_5_a9/