1.
Vlasyk HM. Bernstein – Nikol’skii-type inequalities for trigonometric polynomials with an arbitrary choice of harmonics. Ukr. Mat. Zhurn. [Internet]. 2017Feb.25 [cited 2022Sep.28];69(2):147-56. Available from: http://umj.imath.kiev.ua/index.php/umj/article/view/1683