%0 Journal Article %A M. S. Agranovich %T Spectral problems in Lipschitz domains %J Contemporary Mathematics. Fundamental Directions %D 2011 %P 11-35 %V 39 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMFD_2011_39_a1/ %G ru %F CMFD_2011_39_a1