@book{
  international2011iaea,
  title={Non-Destructive Testing: Sample Questions for Conduct of Examinations at Levels 1 and 2},
  series={Training Course Series},
  number={45},
  year={2011},
  url={https://www.iaea.org/publications/8352/non-destructive-testing-sample-questions-for-conduct-of-examinations-at-levels-1-and-2},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}