Raymo, Maureen E.Huybers, Peter2017-04-072008Raymo, Maureen E., and Peter Huybers. 2008. Unlocking the mysteries of the ice ages. Nature 451: 284-285.0028-0836http://nrs.harvard.edu/urn-3:HUL.InstRepos:32096452Much progress has been made towards understanding what caused the waxing and the waning of the great ice sheets, but a complete theory of the ice ages is still elusive.en-USJournal Article2016-01-29Ray and Huybers10.1038/nature06589