F. H. Clarke, Necessary conditions in dynamic optimization, Memoirs of the American Mathematical Society, vol.173, issue.816, 2005.
DOI : 10.1090/memo/0816

F. Clarke and . Mdr-de-pinho, The Nonsmooth Maximum Principle, Control Cybernetics, 2009.
URL : https://hal.archives-ouvertes.fr/hal-00863267

F. Clarke-e-mdr-de-pinho, Optimal Control Problems with Mixed Constraints, SIAM Journal on Control and Optimization, 2010.

F. Clarke and Y. Ledyaev, MdR de Pinho, An Extension of the Schwarzkopf Multiplier Rule in Optimal Control, SIAM Journal on Control and Optimization, 2011.