%0 Journal Article %A S. Bahlali %T Necessary and sufficient conditions of optimality for optimal control problems of forward and backward systems %J Teoriâ veroâtnostej i ee primeneniâ %D 2009 %P 730-749 %V 54 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_2009_54_4_a5/ %G en %F TVP_2009_54_4_a5