TY - JOUR AU - V. V. Yevstafyeva TI - Theorem on the existence of two-point oscillatory solutions to a relay perturbed system with a negative eigenvalue of the matrix JO - Sibirskie èlektronnye matematičeskie izvestiâ PY - 2024 SP - 990 EP - 1010 VL - 21 IS - 2 UR - http://geodesic.mathdoc.fr/item/SEMR_2024_21_2_a36/ LA - ru ID - SEMR_2024_21_2_a36 ER -