%0 Journal Article %A S. V. Gonchenko %A D. V. Turaev %A L. P. Shilnikov %T Existence of Infinitely Many Elliptic Periodic Orbits in Four-Dimensional Symplectic Maps with a~Homoclinic Tangency %J Informatics and Automation %D 2004 %P 115-142 %V 244 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_2004_244_a6/ %G ru %F TRSPY_2004_244_a6