%0 Journal Article %T Development and testing of a portable "noise-meter" for areal magnetic noise survey %A , .. %A , .. %A , .. %A , .. %A , .. %A , .. %A , .. %K Magneticobservatory, magnetic data, ground-based monitoring %J Russian Journal of Earth Sciences %D 2020 %N 20 %P 8 %I Геофизический центр Российской Академии Наук