TY - JOUR AU - V. A. Taft AU - V. Yu. Gorelik TI - On the frequency and time characteristics of systems with varying parameters JO - Doklady Akademii Nauk PY - 1969 SP - 1251 EP - 1253 VL - 187 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1969_187_6_a10/ LA - ru ID - DAN_1969_187_6_a10 ER -