1. BOURDACHE-SIGUERDIDJANE, H. "Contribution au caloul des lois de bouclage en commande optimale non linéaire". Thèse de Docteur-Ingénieur, Université Paris XI, 1985.
2. BOURDACHE-SIGUERDIDJANE, H., FLIESS, M. "On the computation of optimal nonlinear feedback controls", Proc. Vth IFAC Workshop on Control Application of Nonlinear Programming and Optimization, Capri, Italy, June 11–14, 1985.
3. BOURDACHE-SIGUERDIDJANE, H., FLIESS, M. "Optimal feedback control of nonlinear systems", to appear in Automatica.
4. COURANT, R., HILBERT, D. Methods of Mathematical Physics, Vol.II. Interscience, New York, 1962.
5. WILLEMSTEIN, A.P., "Optimal regulation of nonlinear dynamical systems on a finite interval", SIAM J. Control Optimiz., Vol. 15, 1977, pp. 1050–1069.