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1. Boshoff, A., Skead, C. & Kerley, G. 2002. Elephants in the broader Eastern Cape – an historical overview. In: Kerley, G., Wilson, S. & Massey, A. (eds) Elephant conservation and management in the Eastern Cape. Terrestrial Ecology Research Unit Report No. 35: pp 3-15.

2. Skead, C.J. 2007. Historical incidence of the larger land mammals in the broader Eastern Cape. Second Edition. (A.F. Boshoff, G.I.H. Kerley & P.H. Lloyd (eds)). Centre for African Conservation Ecology, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa. 570 pp.

3. Carruthers, J., Boshoff, A., Slotow, R., Biggs, H., Avery, G. & Matthews, W. 2008. The elephant in South Africa: history and distribution. In: RJ Scholes and KG Mennell (eds). Elephant management. A scientific assessment for South Africa. Wits University Press. Johannesburg. pp. 23-83.

4. Boshoff, A.F. & Kerley, G.I.H. 2010. Historical mammal distribution data: how reliable are written records?  South African Journal of Science 106: 26-33.

5. Skead, C.J. 2011. Historical incidence of the larger land mammals in the broader Western and Northern Cape. Second Edition. (A.F. Boshoff, G.I.H. Kerley & P.H. Lloyd (eds)). Centre for African Conservation Ecology, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa. 519 pp.

6. Boshoff, A.F. & Kerley, G.I.H. 2013. Historical incidence of the larger mammals in the Free State Province (South Africa) and Lesotho. Port Elizabeth: Centre for African Conservation Ecology, Nelson Mandela Metropolitan University. 488 pp.

7. Boshoff, A.F. & Kerley, G.I.H. 2015. Lost herds of the Highveld: evidence from the written, historical record. African Journal of Wildlife Research 45:1-14 http://dx.doi.org/10.3957/056.045.0287.

8. Boshoff, A.F., Landman, M. & Kerley, G.I.H. 2016. Filling the gaps on the maps: historical distribution patterns of some of the larger mammals in part of southern Africa. Transactions of the Royal Society of South Africa1.     71: 23-87. http://dx.doi.org/10.1080/0035919X.2015.1084066.

9. Monsarrat, S. & Kerley, G.I.H. 2018. Charismatic species of the past: biases in reporting of large mammals in historical written sources. Biological Conservation 223:68-75. https://doi.org/10.1016/j.biocon.2018.04.036.

10. Monsarrat, S., Boshoff, A.F. & Kerley, G.I.H. 2018. Accessibility maps as a tool to predict sampling bias in historical biodiversity occurrence records. Ecography 41:1-12. https://doi.org/10.1111/ecog.03944.