T. V. Lazovskaya, S. V. Nagaev, “Problems in Calculating Moments and Distribution Functions of Ladder Heights”, J Math Sci, 218:2 (2016), 195
Vladimir Lucic, Yacine Dolivet, “Karamata Method and the Maximum of Sums of Independent Random Variables”, SSRN Journal, 2015
С. В. Нагаев, “Точные выражения для моментов лестничных высот”, Сиб. матем. журн., 51:4 (2010), 848–870 ; S. V. Nagaev, “Exact expressions for the moments of ladder heights”, Siberian Math. J., 51:4 (2010), 675–695