@book{
      international1998iaea,
      title={Improving Yield and Nitrogen Fixation of Grain Legumes in the Tropics and Sub-tropics of Asia},
      author={ },
      series={entity},
      number={1027 },
      year={1998},
      isbn={ },
      url={/publications/5323/improving-yield-and-nitrogen-fixation-of-grain-legumes-in-the-tropics-and-sub-tropics-of-asia },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }