00637naa#a2200217#i#450# EN\\bibl\47002 20241127095427.3 1681-1208 20071225b2007####ek#y0engy0150####ca RU Long-term solar activity variations as a stimulator of abrupt climate change Journal article Moscow Geophysical Center of the Russian Academy of Sciences 2007 8 с. Journal article local Raspopov O M Dergachev A V Kolstrom T Kuzmin A V Lopatin E V Lisitsyna O V rjes.ru