Shyshkov AE. On the estimates of the rate of propagation of perturbations in quasilinear divergent degenerated parabolic equations of the high order. Ukr. Mat. Zhurn. [Internet]. 1992 Oct. 1 [cited 2025 Apr. 9];44(10):1451-6. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/8244