1. A method to obtain complex control law by using only error signal or controlled variable and its derivative;Emelyanov;Autom. Remote Control,1957
2. On the stability of variable structure control systems when sliding conditions are violated;Barbashin;Autom. Remote Control,1963
3. On stability of a class of variable structure systems;Emelyanov;Eng. Cybern.,1964
4. On compensation of the forced component in the motion of control systems with variable structure;Utkin;Eng. Cybern.,1965
5. The invariance conditions in variable structure systems;Draženović;Automatica,1969