1. V.I. Utkin. Sliding Modes and Their Application in Variable Structure Systems. Moscow: Mir, 1978. (English translation)
2. —. "Variable Structure Systems. Present and Future." In Autom. Remote Control 44 (1984): 1105–20. (English translation)
3. G. Bartolini, and T. Zolezzi. "Control of Nonlinear Variable Structure Systems." J. Math. Anal. Appl. To appear.
4. —. "Variable Structure Systems Nonlinear in the Control Law." IEEE Trans. Autom. Control AC-30 (1985): 6818–24.
5. —. "Nonlinear Control of Variable Structure Systems." Lecture Notes in Control Information Sciences 62, pt. 1 (1984): 542–9.