%0 Journal Article
%A N. N. Il'inskaya
%T Geometric analysis of a problem on a harmonic oscillator in an ellipse
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1991
%P 88-92
%N 1
%U http://geodesic.mathdoc.fr/item/VMUMM_1991_1_a19/
%G ru
%F VMUMM_1991_1_a19