@book{
      international1981iaea,
      title={Methods of Low-level Counting and Spectrometry (Berlin West, 6-10 April 1981)},
      author={ },
      series={entity},
      number={ },
      year={1981},
      isbn={92-0-030081-2 },
      url={/publications/3426/methods-of-low-level-counting-and-spectrometry-berlin-west-6-10-april-1981 },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }