?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Fernando&rft.aulast=Riaza+Fernandez&rft.au=Riaza+Fernandez%2C+Fernando&rft.date=3+September+2020&rft.tpages=64&rft.inst=E.T.S.+de+Ingenier%C3%ADa+Agron%C3%B3mica%2C+Alimentaria+y+de+Biosistemas+(UPM)+%3Chttp%3A%2F%2Foa.upm.es%2Fview%2Finstitution%2FAgronomica%2F%3E&rft.title=Water+as+an+explanatory+factor+for+food+security+in+dryland+countries&rft.degree=Master+thesis