1. Lyapunov, A.M., A Study of One Special Case of the Motion Stability Problem, Mat. Sb., 1893, vol. 17, no. 2, pp. 253–333.
2. Rumyantsev, V.V., On the Stability of Motion with respect to a Part of the Variables, Vestn. Mosk. Gos. Univ., Ser. Mat, Mekh., Fiz., Astron., Khim., 1957, no. 4, pp. 9–16.
3. Rumyantsev, V.V. and Oziraner, A.S., Ustoichivost’ i stabilizatsiya dvizheniya po otnosheniyu k chasti peremennykh (Stability and Stabilization of Motion with respect to a Part of the Variables), Moscow: Nauka, 1987.
4. Vorotnikov, V.I., Partial Stability and Control, Boston: Birkhauser, 1998.
5. Vorotnikov, V.I., Two Classes of Partial Stability Problems: On the Unification of Notions and United Feasibility Conditions, Dokl. Ross. Akad. Nauk, 2002, vol. 384, no. 1, pp. 47–51.