@article{022372825,
title = "Determination of nitrogen, carbon and oxygen stable isotope ratios in N2O, CH4, and CO2 at natural abundance levels by mass spectrometer",
author = "Cao YaCheng and Sun GuoQing and Han Yong and Sun DeLing and Wang Xi",
year = "2008",
journal = "Acta Pedologica Sinica",
volume = "45",
number = "2",
pages = "249-258",
url = "https://eurekamag.com/research/022/372/022372825.php"
}