%0 Journal Article %A A. Khludnev %T An optimal control problem for a fourth-order variational inequality %J Banach Center Publications %D 1992 %P 225-231 %V 27 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/-27-1-225-231/ %R 10.4064/-27-1-225-231 %G en %F 10_4064__27_1_225_231