Authors: Martin Sikora; Anders Albrechtsen; Thorfinn Sand Korneliussen; J Víctor Moreno-Mayar; Morten Rasmussen; G David Poznik; Christoph P E Zollikofer; Marcia Ponce de León; Morten E Allentoft; Ida Moltke; Hákon Jónsson; Cristina Valdiosera; Ripan S Malhi; Ludovic Orlando; Carlos D Bustamante; Thomas W Stafford; David J Meltzer; Rasmus Nielsen; Eske Willerslev Journal: Nature Date: 2015-07-23 Impact factor: 49.962