TY - JOUR AU - S. V. Gonchenko AU - D. V. Turaev AU - L. P. Shilnikov TI - Existence of Infinitely Many Elliptic Periodic Orbits in Four-Dimensional Symplectic Maps with a~Homoclinic Tangency JO - Informatics and Automation PY - 2004 SP - 115 EP - 142 VL - 244 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_2004_244_a6/ LA - ru ID - TRSPY_2004_244_a6 ER -