YEZHOV, I. I.; KADANKOV, V. F. Boundary Functionals for the Difference of Nonordinary Renewal Processes with Discrete Time. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 52, n. 10, p. 1345–1356, 2000. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4541. Acesso em: 5 dec. 2025.