%0 Journal Article %A Edouard Bard %T Greenhouse effect and ice ages: historical perspective %J Comptes Rendus. GĂ©oscience %D 2004 %P 603-638 %V 336 %N 7-8 %I Elsevier %R 10.1016/j.crte.2004.02.005 %G en %F CRGEOS_2004__336_7-8_603_0