TY - JOUR AU - I. N. Sergeev TI - Study of the Complete Oscillation, Rotation, and Wandering Properties of a Differential System by the First Approximation JO - Matematičeskie zametki PY - 2024 SP - 610 EP - 618 VL - 115 IS - 4 UR - http://geodesic.mathdoc.fr/item/MZM_2024_115_4_a10/ LA - ru ID - MZM_2024_115_4_a10 ER -