@book{ international2009iaea, title={Guidebook for Establishing a Sustainable and Accredited System for Qualification and Certification of Personnel for Non Destructive Testing}, series={Training Course Series}, number={34}, year={2009}, url={https://www.iaea.org/publications/8095/guidebook-for-establishing-a-sustainable-and-accredited-system-for-qualification-and-certification-of-personnel-for-non-destructive-testing}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} }