Sursele materialelor plasate pe 8 noiembrie 2012 la rubrica "Interese”
http://www.realclearscience.com/2012/11/05/were_dinosaurs_destined_to_be_big_249872.html
http://sciencenordic.com/huge-eruption-adds-new-perspective-past-climate
http://www.kp.md/daily/25980/2913983/
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