@techreport{cole2011report, title = {Report on economically-viable mineral resources in the City of Cape Town's administrative area} author = {Cole, DI}, url = {https://resource.capetown.gov.za/documentcentre/Documents/City%20research%20reports%20and%20review/Remaining-Extent-of-Mineral-Resources-in-CCT-REPORT-2011-06.pdf}, year = {2011} }