GOSHKO, L. V.; PORTENKO, N. I. Limit theorems for the number of crossings of a fixed plane by certain sequences of generalized dbffusion processes. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 46, n. 4, p. 357–371, 1994. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5732. Acesso em: 12 jan. 2026.