%0 Journal Article %A J. Cohen %A S. Yu. Slavyanov %T Quasiclassical asymptotics of the spectrum for lower states of an anharmonic oscillator %J Algebra i analiz %D 1991 %P 132-138 %V 3 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_1991_3_2_a4/ %G ru %F AA_1991_3_2_a4