%0 Journal Article %T Long-term solar activity variations as a stimulator of abrupt climate change %A Raspopov, O.M. %A Dergachev, A.V. %A Kolstrom, T.. %A Kuzmin, A.V. %A Lopatin, E.V. %A Lisitsyna, O.V. %K solar activity variations, abrupt climate change, ice-rafting events. %J Russian Journal of Earth Sciences %D 2007 %N 9 %P 8 %I Geophysical Center of the Russian Academy of Sciences