GUSAK, D. V. Behavior of classical risk processes after ruin and a multivariate ruin function. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 59, n. 10, p. 1339–1352, 2007. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3393. Acesso em: 5 dec. 2025.