TY - RPRT TI - Ancient DNA reveals the chronology of walrus ivory trade from Norse Greenland AU - Star, B. AU - Barrett, J. H. AU - Gondek, A. T. AU - Boessenkool, S. PY - 2018 DO - 10.1101/289165 UR - https://www.biorxiv.org/content/10.1101/289165v1 ID - 10.1101/289165 ER -