1. Denman K, Brasseur G, Chidthaisong A, Ciais P, Cox P, et al.. (2007) Couplings Between Changes in the Climate System and Biogeochemistry. In: Solomon S, Qin D, Manning M, Chen Z, Marquis M et al.., editors. Climate Change 2007: The Physical Science Basis, Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change: Cambridge University Press. pp. 499–587.
2. Reay D, Smith P, Amstel ARv (2010) Methane sources and the global methane budget. In: Reay D, Smith P, Amstel ARv, editors. Methane and climate change. London: Earthscan. pp. 1––14.
3. Atmospheric methane and global change;DJ Wuebbles;Earth-Science Reviews,2002
4. Livestock production in a changing climate: adaptation and mitigation research in Australia;B Henry;Crop and Pasture Science,2012
5. Supplementation with whole cottonseed reduces methane emissions and can profitably increase milk production of dairy cows offered a forage and cereal grain diet;C Grainger;Animal Production Science,2008