BRATIICHUK, N. S. Exact Formulas for $E^{θ}/G/1/N$-Type Queuing Systems. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 52, n. 8, p. 1034–1044, 2000. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4507. Acesso em: 5 dec. 2025.