?url_ver=Z39.88-2004&rft_id=doi%3A10.3389%2Ffphys.2017.00298&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Esteve-Lanao%2C+Jonathan&rft.aufirst=Jonathan&rft.aulast=Esteve-Lanao&rft.title=Frontiers+in+Physiology&rft.issn=1664-042X&rft.volume=8&rft.atitle=Is+Marathon+Training+Harder+than+the+Ironman+Training%3F+An+ECO-method+Comparison&rft.date=2017&rft.genre=article