@book{
      international2018iaea,
      title={Training Guidelines in Non-destructive Testing Techniques},
      author={ },
      series={entity},
      number={67 },
      year={2018},
      isbn={ },
      url={/publications/10915/training-guidelines-in-non-destructive-testing-techniques },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }