Spero 01 · 2013. 7. 15. · Howard J. Spero', Jelle Bijma2, David W. Lea', and Ann D....
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Spero 01 · 2013. 7. 15. · Howard J. Spero', Jelle Bijma2, David W. Lea', and Ann D. Russell' 'Department of Geology University Of California Davis Davis, California 95616, USA