TY - JOUR AU - K. K. Zapol'skii TI - Frequency-time fields and dynamic characteristics of seismic focus functions of strong earthquakes JO - Doklady Akademii Nauk PY - 1973 SP - 1338 EP - 1341 VL - 210 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1973_210_6_a20/ LA - ru ID - DAN_1973_210_6_a20 ER -