Vibart, R. E., G. Rennie, K. Hutchinson, A. Burtt, J. Chrystal, and R. Dynes. “Greenhouse Gas Emissions from New Zealand Sheep and Beef Farms”. Journal of New Zealand Grasslands, vol. 83, Feb. 2022, pp. 252-3, doi:10.33584/jnzg.2021.83.3501.