KOLOMIYETS, V. G.; MITROPOLSKIY, Yu. A. Asymptotic methods in the theory of nonlinear random oscillations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 46, n. 8, p. 1011–1016, 1994. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5654. Acesso em: 5 dec. 2025.