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@article{MZM_1968_3_2_a1, author = {A. A. Mirolubov}, title = {On the completeness of a~system of functions}, journal = {Matemati\v{c}eskie zametki}, pages = {125--132}, publisher = {mathdoc}, volume = {3}, number = {2}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1968_3_2_a1/} }
A. A. Mirolubov. On the completeness of a~system of functions. Matematičeskie zametki, Tome 3 (1968) no. 2, pp. 125-132. http://geodesic.mathdoc.fr/item/MZM_1968_3_2_a1/