Huizenga, Jan Marten, Gutzmer, Jens, Greyling, Lynnette, and Schaefer, Markus (2006) Carbonic fluid inclusions in Paleoproterozoic carbonate-hosted Zn-Pb deposits in Griqualand West, South Africa. South African Journal of Geology, 109 (1-2). pp. 55-62.

Huizenga, Jan-Marten, Gutzmer, Jens, Banks, David, and Greyling, Lynnette (2006) The Paleoproterozoic carbonate-hosted Pering Zn–Pb deposit, South Africa. II: fluid inclusion, fluid chemistry and stable isotope constraints. Mineralium Deposita, 40. pp. 686-706.