This publication was an output of Craig Galloway's PhD thesis, in collaboration with Prof Karen Esler (University of Stellenbosch); Dr Beatrice Conradie (University of Cape Town)and Dr Heidi Prozesky (University of Stellenbosch).

Galloway, Craig, Beatrice Conradie, Heidi Prozesky, and Karen Esler. “Opportunities to improve sustainability on commercial pasture-based dairy farms by assessing environmental impact.” Agricultural systems 166 (2018): 1-9.