1. D. M. Klimov, A. G. Petrov, and D. V. Georgievskii, Viscous-Plastic Flows: Dynamic Chaos, Stability, Mixing (Nauka, Moscow, 2005) [in Russian].
2. D. V. Georgievskii, “The Diffusion of a Discontinuity of the Shear Stress at the Boundary of a Viscoplastic Half-Plane,” Prikl. Mat. Mekh. 70(5), 884–892 (2006) [J. Appl. Math. Mech. (Engl. Transl.) 70 (5), 796–803 (2006)].
3. S. N. Kruzhkov, “On Some Problems with Unknown Boundaries for the Heat Conduction Equation,” Prikl. Mat. Mekh. 31(6), 1009–1020 (1967) [J. Appl. Math. Mech. (Engl. Transl.) 31 (6), 1014–1024 (1967)].
4. P. M. Ogibalov and A. Kh. Mirzadzhanzade, Unsteady Motions of Visco-Plastic Media (Nauka, Moscow, 1977) [in Russian].
5. A. N. Tikhonov and A. A. Samarsky, Equations of Mathematical Physics (Izd-vo MGU, Moscow, 1999) [in Russian].