Dehnerys V. On the preservation of the boundedness of the $l$-index under the action of the Bernardi integral operator and the Ruscheweyh derivative. Number [Internet]. 2026 Apr. 24 [cited 2026 Apr. 25];(22(83):29-35. Available from: https://pvntsh.nung.edu.ua/index.php/number/article/view/2234