TY - JOUR AU - R. È. Vinograd TI - Estimation of the jump of the higher characteristic exponent in the case of small perturbations JO - Doklady Akademii Nauk PY - 1957 SP - 459 EP - 461 VL - 114 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1957_114_3_a1/ LA - ru ID - DAN_1957_114_3_a1 ER -