00539naa#a2200169#i#450# EN\\bibl\46914 20240428224925.7 1681-1208 20091125b2009####ek#y0engy0150####ca RU Global Access to Geomagnetic data #x2013; Concept and Implementation of a Virtual Observatory Journal article Moscow Geophysical Center of the Russian Academy of Sciences 2009 5 с. Journal article local Petrov V G Papitashvili V O rjes.ru