Venter, A., Vakkar, V., Beukes, J., van Zyl, P., Laakso, H., Mabaso, D., … Laakso, L. (2012). An air quality assessment in the industrialised western Bushveld Igneous Complex, South Africa. South African Journal of Science, 108(9/10), 10 Pages. Retrieved from https://sajs.co.za/article/view/9791