Geerts, S., Mangachena, J. R., Nsikani, M. M., (2022). South African Journal of Botany 146, 491-496. Elsevier Ltd, Oxford, UK. English language
Nsikani, M. M., Geerts, S., Ruwanza, S., Richardson, D. M., (2020). South African Journal of Botany 132, 338-345. Elsevier Ltd, Oxford, UK. English language
Vidal, C., (2012). Forêt-Entreprise(No.206), 38-42. Institut pour le Développement Forestier, Paris, France. French language
Böhringer, A., Leihner, D. E., Böcker, R., (1996). Tropenlandwirt 97(2), 225-239. English language
Dye, P. J., Poulter, A. G., (1995). South African Forestry Journal(No. 173), 27-30. English language
Cornejo-Oviedo, E., Gronski, S., Felker, P., (1992). Journal of Arid Environments 22(4), 339-351. English language