%0 Journal Article %A A. Arkhipova %T Variational problem with an obstacle in $\mathbb R^N$ for a~class of quadratic functionals %J Zapiski Nauchnykh Seminarov POMI %D 2008 %P 15-47 %V 362 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2008_362_a1/ %G en %F ZNSL_2008_362_a1