GRIGELIONIS, B. To the question on convergence of the sums of the random step processes to a Poisson process. Lithuanian Mathematical Journal, [S. l.], v. 6, n. 2, p. 241–244, 1966. DOI: 10.15388/LMJ.1966.19721. Disponível em: https://www.zurnalai.vu.lt/LMJ/article/view/19721. Acesso em: 8 jun. 2025.