%0 Journal Article %A A. Hammoudi %A M. Benharrat %T On the relation between two approaches to exterior penalty method for constrained optimal control problems %J Eurasian mathematical journal %D 2021 %P 21-42 %V 12 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/EMJ_2021_12_4_a2/ %G en %F EMJ_2021_12_4_a2