@book{
      international1998iaea,
      title={Directory of Cyclotrons Used for Radionuclide Production in Member States},
      author={ },
      series={entity},
      number={1007 },
      year={1998},
      isbn={ },
      url={/publications/5303/directory-of-cyclotrons-used-for-radionuclide-production-in-member-states },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }