I. K. Matsak and A. M. Plichko, “On the law of the iterated logarithm for weighted sums of independent random variables in a Banach space”, Ukr. Mat. Zhurn., vol. 45, no. 9, pp. 1225–1231, Sep. 1993, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/5924