00483naa#a2200169#i#450# EN\\bibl\46961 20240624121335.1 1681-1208 20080625b2008####ek#y0engy0150####ca RU The Borok INTERMAGNET magnetic observatory Journal article Moscow Geophysical Center of the Russian Academy of Sciences 2008 6 с. Journal article local Chulliat A Anisimov S rjes.ru