CHUESHOV, I.; PANKRATOV, L. Upper semicontinuity of attractors of semilinear parabolic equations with asymptotically degenerating coefficients. Математическая физика, анализ, геометрия, Харків, Україна, v. 6, n. 1-2, p. 158–181, 1999. Disponível em: http://mag.ilt.kharkiv.ua/index.php/mag/article/view/m06-0158e. Acesso em: 19 трав. 2024.