%0 Journal Article %A S. V. Galtsev %A A. I. Shafarevich %T Spectrum and Pseudospectrum of non-self-adjoint Schr\"odinger Operators with Periodic Coefficients %J Matematičeskie zametki %D 2006 %P 356-366 %V 80 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2006_80_3_a4/ %G ru %F MZM_2006_80_3_a4