1. Krasovskii, N.N., Problems of Stabilization of the Controlled Motions, in Malkin, I.G., Teoriya ustoichivosti dvizheniya (Theory of Motion Stability), Moscow: Nauka, 1966, pp. 475–514.
2. Polyak, B.T. and Shcherbakov, P.S., Robastnaya ustoichivost’ i upravlenie (Robust Stability and Control), Moscow: Nauka, 2002.
3. Korobov, V.I., Metod funktsii upravlyaemosti (Method of the Controllability Function), Moscow–Izhevsk: NITs “Regulyarnaya i Khaoticheskaya Dinamika,” Izhev. Inst. Komp’yut. Issled., 2007.
4. Khalil, N.K., Nonlinear Systems, Upper Saddle River: Prentice Hall, 2002.
5. Kawski, M., Stabilization of Nonlinear Systems in the Plane, SCL, 1989, no. 12, pp. 169–175.