%0 Journal Article %A N. Raïssi %A M. Serhani %T Nonconvex Duality and Viscosity Solutions of the Hamilton-Jacobi-Bellman Equation in Optimal Control %J Journal of convex analysis %D 2002 %P 625-648 %V 9 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCA_2002_9_2_JCA_2002_9_2_a18/ %F JCA_2002_9_2_JCA_2002_9_2_a18