00728naa#a2200205#i#450# EN\INFRA-M\bibl\18352 20240420151925.6 2712-9640 20171227b2017####ek#y0engy0150####ca RUS RU North-south asymmetry of ultra-low-frequency oscillations of Earth’s electromagnetic field Journal article Moscow INFRA-M Academic Publishing LLC. 2017 6 с. Journal article local Геология. Геологические и геофизические науки. 55 RUS Guglielmi Anatol Vladimirovich Klain Boris Icikovich Potapov Alexander Sergeevich naukaru.ru