1. S. N. Vasil’ev and A. I. Malikov, “Some results on the stability of switchable and hybrid systems,” in Actual Problems of Mechanics of Continuous Media, To 20 Years of Inst. Mech. Eng. Kazan Sci. Center of RAS (Foliant, Kazan, 2011), vol. 1, pp. 23–81 [in Russian].
2. A. S. Bortakovskii, “Sufficient optimality conditions for controlling switched systems,” J. Comput. Syst. Sci. Int. 56, 636 (2017).
3. A. S. Bortakovskii, Optimization of Switching Systems (Mosk. Aviats. Inst., Moscow, 2016) [in Russian].
4. A. S. Bortakovskii, “Synthesis of optimal control systems with a change of the models of motion,” J. Comput. Syst. Sci. Int. 57, 543 (2018).
5. R. Bellman, Dynamic Programming, Dover Books on Computer Science (Dover, New York, 2003).