Lee, T.E.; Roberts, D.L. 2016. Devaluing rhino horns as a theoretical game. Ecological Modelling 337: 73-78.
Smith, R.J.; Roberts, D.L.; Duffy, R.; St John, F.A.V. 2013. New rhino conservation project in South Africa to understand landowner decision-making. Oryx 47 (3): 323.






