TY - JOUR T1 - Ionospheric perturbations related to the earthquake in Vrancea area on November 22, 2014, as detected by electromagnetic VLF/LF frequency signals JO - Annals of Geophysics PY - 2015/12/01 AU - Solovieva M AU - Rozhnoi A AU - Fedun V AU - Schwingenschuh K AU - Hayakawa M ED - DO - DOI: 10.4401/ag-6827 VL - 58 IS - 5 Y2 - 2024/09/20 ER -