TY - JOUR AU - A. I. Safonov AU - O. V. Kholostova TI - On periodic motions of a symmetrical satellite in an orbit with small eccentricity in the case of multiple combinational resonance of the third and fourth orders JO - Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki PY - 2018 SP - 373 EP - 394 VL - 28 IS - 3 UR - http://geodesic.mathdoc.fr/item/VUU_2018_28_3_a7/ LA - ru ID - VUU_2018_28_3_a7 ER -