Zajkowski, K. “On the Strong Law of Large Numbers for ϕ-Sub-Gaussian Random Variables”. Ukrains’kyi Matematychnyi Zhurnal 73, no. 3 (March 19, 2021): 431 - 436. Accessed March 29, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/197.