TY - JOUR AU - Yu. M. Mikhailov AU - O. V. Kapustina AU - G. I. Druzhin TI - Whistling characteristics during periods of ionospheric disturbances JO - Vestnik KRAUNC. Fiziko-matematičeskie nauki PY - 2019 SP - 173 EP - 181 VL - 29 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VKAM_2019_29_4_a17/ LA - ru ID - VKAM_2019_29_4_a17 ER -