Baksa V, Bandura AI, Salo T. Boundedness of the L-index in a direction of the sum and product of slice holomorphic functions in the unit ball. Mat. Stud. [Internet]. 2022Jun.27 [cited 2024Dec.26];57(2):216-24. Available from: http://matstud.org.ua/ojs/index.php/matstud/article/view/336