1. Ackman TE, Jones JR (1988) Stream sealing to reduce surface water infiltration into underground mines. Bur Mines Inf Circ IC 9183:232–239
2. Allen CM, Taylor EA (1923) The salt velocity method of water measurements. Trans Am Soc Mech Eng 45:285–341
3. Bradley C, Cross J, Durand JF, Ellis R, Groenewald J, Grove A, Holland M, Kenyon P, Jamison AA, Krige WG, Macgregor M, Tholin J, Peinke D, Witthüser K, van Biljon M (2010) The Karst System of the Cradle of Humankind World Heritage Site, WRC Report No. KV 241/10. Water Research Commission, Pretoria, p 402
4. Coetzee H (2011) A flooding and pumping model for the Western Basin of the Witwatersrand Gold Fields, based on empirical data, Report No. Report 2011-0176. Council for Geoscience, Pretoria, p 7
5. Coetzee H, Horstmann U, Ntsume G, Croukamp L (2003) The potential environmental impact of the decant of water from Witwatersrand. In: Nel PJL (ed) Mine Water Environ. Proceedings 8th International Mine Water Association Congress, Johannesburg, p 201–217