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@article{DE_1986_22_1_a19, author = {G. G. Devdariani}, title = {The basis property of a trigonometric system of functions}, journal = {Differencialʹnye uravneni\^a}, pages = {168--170}, publisher = {mathdoc}, volume = {22}, number = {1}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1986_22_1_a19/} }
G. G. Devdariani. The basis property of a trigonometric system of functions. Differencialʹnye uravneniâ, Tome 22 (1986) no. 1, pp. 168-170. http://geodesic.mathdoc.fr/item/DE_1986_22_1_a19/