Christine Keyser, Caroline Bouakaze, Eric Crubezy, Valery G. Nikolaev, Daniel Montagnon, Tatiana Reis, Bertrand Ludes. Ancient DNA provides new insights into the history of south Siberian Kurgan people // Hum. Genet. (2009) 126:395–410.
original at http://www.springerlink.com/content/4462755368m322k8/fulltext.pdf

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