1. P. L. Kapitsa and S. P. Kapitsa, “Wave Flows of Thin Liquid Layers,” Zh. Eksp. Teor. Fiz. 19(2), 105–120 (1949).
2. V. Ya. Shkadov, “Wave Flow Regimes of a Thin Layer of Viscous Fluid Subject to Gravity,” Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 1, 42–51 (1967) [Fluid Dynamics 2 (1), 29–34 (1967)].
3. V. Ya. Shkadov, “Solitary Waves in a Layer of Viscous Liquid,” Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 1, 63–66 (1977) [Fluid Dynamics 12 (1), 52–55 (1977)].
4. A. V. Bunov, E. A. Demekhin, and V. Ya. Shkadov, “On the Non-Uniqueness of Nonlinear Wave Solutions in a Viscous Layer,” Prikl. Mat. Mekh. 48(4), 691–699 (1984) [J. Appl. Math. Mech. 48 (4), 495–499 (1984)].
5. A. V. Bunov, E. A. Demekhin, and V. Ya. Shkadov, “Bifurcation of Solitary Waves in a Flowing Layer of Liquid,” Vestn. Mosk. Univ. Ser. 1: Mat. Mekh., No. 2, 73–78 (1986) [Moscow Univ. Mech. Bull. 41 (2), 36–42 (1986)].