Vyatchaninov OV, Gorodnii MF. On the boundedness of one recurrent sequence in a banach space. Ukr. Mat. Zhurn. [Internet]. 2009 Sep. 25 [cited 2025 Dec. 5];61(9):1293-6. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/3100