@book{
      international1997iaea,
      title={WWER-1000 Steam Generator Integrity},
      author={ },
      series={entity},
      number={7 },
      year={1997},
      isbn={ },
      url={/publications/4545/wwer-1000-steam-generator-integrity },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }