Phuong L T B, Khang D N, Preston T R and Leng R A 2012:
Mitigating methane emissions from ruminants; comparison of three nitrate salts as sources of NPN (and sinks for hydrogen) in an in vitro system using molasses and cassava leaf meal as substrates.
Livestock Research for Rural Development. Volume 24, Article #17.
, from http://www.lrrd.org/lrrd24/1/phuo24017.htm