TY - JOUR AU - N. A. Izobov AU - T. E. Zvereva TI - The spectrum of characteristic exponents of a two-dimensional stationary system with perturbations-rotations JO - Differencialʹnye uravneniâ PY - 1981 SP - 1964 EP - 1977 VL - 17 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1981_17_11_a4/ LA - ru ID - DE_1981_17_11_a4 ER -