@book{
      international1992iaea,
      title={Valoragua A Model for the Optimal Operation Strategy of Mixed Hydrothermal Generating Systems Users' Manual for the Mainframe Computer Version},
      author={ },
      series={entity},
      number={4 },
      year={1992},
      isbn={ },
      url={/publications/1017/valoragua-a-model-for-the-optimal-operation-strategy-of-mixed-hydrothermal-generating-systems-users-manual-for-the-mainframe-computer-version },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }