%0 Journal Article %A Michael Bildhauer %A Martin Fuchs %A Sergey Repin %T Duality based a posteriori error estimates for higher order variational inequalities with power growth functionals %J Annales Fennici Mathematici %D 2008 %P 475-490 %V 33 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AFM_2008_33_2_a7/ %G en %F AFM_2008_33_2_a7