Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1994_55_2_a12, author = {S. B. Stechkin}, title = {Some extremal properties of trigonometric sums}, journal = {Matemati\v{c}eskie zametki}, pages = {130--143}, publisher = {mathdoc}, volume = {55}, number = {2}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1994_55_2_a12/} }
S. B. Stechkin. Some extremal properties of trigonometric sums. Matematičeskie zametki, Tome 55 (1994) no. 2, pp. 130-143. http://geodesic.mathdoc.fr/item/MZM_1994_55_2_a12/