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@article{MZM_1991_50_3_a6, author = {V. M. Kadets}, title = {A~remark on the trigonometric basis}, journal = {Matemati\v{c}eskie zametki}, pages = {54--57}, publisher = {mathdoc}, volume = {50}, number = {3}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1991_50_3_a6/} }
V. M. Kadets. A~remark on the trigonometric basis. Matematičeskie zametki, Tome 50 (1991) no. 3, pp. 54-57. http://geodesic.mathdoc.fr/item/MZM_1991_50_3_a6/