Asymptotic controllability implies feedback stabilization. - Francis H. Clarke; Yuri S. Ledyaev; Eduardo D. Sontag; Andrei I. Subbotin (IEEE Trans. Autom. Control., 1997)

On Global Optimality Conditions for Nonlinear Optimal Control Problems. - Francis H. Clarke; Jean-Baptiste Hiriart-Urruty; Yuri S. Ledyaev (J. Glob. Optim., 1998)

Feedback Stabilization and Lyapunov Functions. - Francis H. Clarke; Yuri S. Ledyaev; Ludovic Rifford; Ronald J. Stern (SIAM J. Control. Optim., 2000)

Robustness of discontinuous feedback in control under disturbance. - Yuri S. Ledyaev (CDC, 2002)

An Extension of the Schwarzkopf Multiplier Rule in Optimal Control. - Francis H. Clarke; Yuri S. Ledyaev; Maria do Rosário de Pinho (SIAM J. Control. Optim., 2011)