%0 Journal Article %A V. I. Pokotilo %T Semiclassical Approximation for the Non-Self-Adjoint Sturm--Liouville Problem with the Potential $q(x)=x^4-a^2x^2$ %J Matematičeskie zametki %D 2009 %P 792-796 %V 85 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2009_85_5_a15/ %G ru %F MZM_2009_85_5_a15