PIPIRAS, V.; STATULEVIČIUS, V. Asymptotic expansions for the sums of independent random variables. Lithuanian Mathematical Journal, [S. l.], v. 8, n. 1, p. 137–151, 1968. DOI: 10.15388/LMJ.1968.20188. Disponível em: https://www.zurnalai.vu.lt/LMJ/article/view/20188. Acesso em: 3 may. 2025.