PAULAUSKAS, V. On Sums of a Random Number of Random Multi-Dimensional Vectors. Lithuanian Mathematical Journal, [S. l.], v. 12, n. 2, p. 109–131, 1972. DOI: 10.15388/LMJ.1972.21115. Disponível em: https://www.journals.vu.lt/LMJ/article/view/21115.. Acesso em: 2 may. 2024.