TY - JOUR AU - A. B. Shvartsburg TI - Reflection of strong radiowave from the ionosphere JO - Doklady Akademii Nauk PY - 1974 SP - 825 EP - 828 VL - 215 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1974_215_4_a15/ LA - ru ID - DAN_1974_215_4_a15 ER -