SPARAVALO, M. K. Topology of nonstationary attractors in spaces of control processes and synergetic model in flight dynamics. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 47, n. 8, p. 1149–1152, 1995. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5513. Acesso em: 5 dec. 2025.