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@article{DAN_1986_288_2_a11, author = {S. R. Treil'}, title = {A spatially compact system of eigenvectors forms a {Riesz} basis if}, journal = {Doklady Akademii Nauk}, pages = {308--312}, publisher = {mathdoc}, volume = {288}, number = {2}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1986_288_2_a11/} }
S. R. Treil'. A spatially compact system of eigenvectors forms a Riesz basis if. Doklady Akademii Nauk, Tome 288 (1986) no. 2, pp. 308-312. http://geodesic.mathdoc.fr/item/DAN_1986_288_2_a11/