?url_ver=Z39.88-2004&rft_id=10.20868%2FUPM.thesis.14631&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Karen+Alejandra&rft.au=B%C3%A1ez+Barraza%2C+Karen+Alejandra&rft.aulast=B%C3%A1ez+Barraza&rft.tpages=198&rft.inst=E.T.S.I.+Agr%C3%B3nomos+(UPM)+%5Bantigua+denominaci%C3%B3n%5D+%3Chttps%3A%2F%2Foa.upm.es%2Fview%2Finstitution%2FAgronomos%2F%3E&rft.date=2012&rft.degree=Doctoral&rft.title=Estrategias+innovadoras+para+la+gesti%C3%B3n+del+riesgo+de+sequ%C3%ADa+en+sistemas+ganaderos+extensivos