%0 Journal Article %A V. N. Sazonov %T Derivation and investigation of an~averaged quantum equation of motion for a~nonlinear oscillator in the field of an~harmonic force %J Teoretičeskaâ i matematičeskaâ fizika %D 1977 %P 107-117 %V 31 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1977_31_1_a10/ %G ru %F TMF_1977_31_1_a10