1. The Euler–Lagrange differential inclusion;Clarke;J. Differential Equations,1975
2. Optimal solutions to differential inclusions;Clarke;J. Optim. Theory Appl.,1976
3. Extremal arcs and extended Hamiltonian systems;Clarke;Trans. Amer. Math. Soc.,1977
4. F.H. Clarke, Optimization and Nonsmooth Analysis, Wiley Interscience, New York, 1983. (Reprinted as vol. 5, Classics in Applied Mathematics, Philadelphia, Pa., 1990; Russian translation: Nauka Press, Moscow, 1988).
5. Hamiltonian analysis of the generalized problem of Bolza;Clarke;Trans. Amer. Math. Soc.,1987