%0 Journal Article %A Freddi, L. %T Optimal control problems with weakly converging input operators in a nonreflexive framework. %J Portugaliae mathematica %D 2000 %P 97-126 %V 57 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_2000__57_1_48674/ %G en %F PORMA_2000__57_1_48674