KlesovO. I. “Convergence of the Series of Large-Deviation Probabilities for Sums of Independent Equally Distributed Random Variables”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 45, no. 6, June 1993, pp. 770–784, https://umj.imath.kiev.ua/index.php/umj/article/view/5866.