S. Sawyer, G. Renaud, B. Viola, J.-J. Hublin, M.-T. Gansauge, M. V. Shunkov, A. P. Derevianko, K. Prüfer, J. Kelso, and S. Pääbo. Nuclear and mitochondrial {DNA} sequences from two Denisovan individuals. Proc. Natl. Acad. Sci. U. S. A., volume 112, issue 51, pages 15696-15700, December 2015.