Vasylyshyn, T. V. “WEAKLY SYMMETRIC LINEAR CONTINUOUS FUNCTIONALS ON THE SPACE OF ABSOLUTELY SUMMABLE SEQUENCES”. METHODS AND DEVICES OF QUALITY CONTROL, no. 1(52) (June 30, 2024): 89–93. Accessed March 10, 2025. https://mpky.nung.edu.ua/index.php/mpky/article/view/641.