?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=X&rft.au=Jiao%2C+X&rft.aulast=Jiao&rft.atitle=The+Impact+of+Cross-Species+Gene+Flow+on+Species+Tree+Estimation&rft.issue=5&rft.date=September+2020&rft.pages=830-847&rft.title=Systematic+Biology&rft.volume=69&rft.genre=article