Jacobs, Z; Roberts, RG; Galbraith, RF; Deacon, HJ; Grün, R; Mackay, A; Mitchell, P; Vogelsang, R; Wadley, L (2008). "Ages for the Middle Stone Age of southern Africa: implications for human behavior and dispersal". Science. 322 (5902): 733–5. CiteSeerX10.1.1.469.1059. doi:10.1126/science.1162219. PMID18974351.
Grine, FE; Henshilwood, CS (2002). "Additional human remains from Blombos Cave, South Africa: (1999-2000 excavations)". J Hum Evol. 42 (3): 293–302. doi:10.1006/jhev.2001.0525. PMID11846532.
Jacobs, Z; Roberts, RG; Galbraith, RF; Deacon, HJ; Grün, R; Mackay, A; Mitchell, P; Vogelsang, R; Wadley, L (2008). "Ages for the Middle Stone Age of southern Africa: implications for human behavior and dispersal". Science. 322 (5902): 733–5. CiteSeerX10.1.1.469.1059. doi:10.1126/science.1162219. PMID18974351.
Grine, FE; Henshilwood, CS (2002). "Additional human remains from Blombos Cave, South Africa: (1999-2000 excavations)". J Hum Evol. 42 (3): 293–302. doi:10.1006/jhev.2001.0525. PMID11846532.
Jacobs, Z; Roberts, RG; Galbraith, RF; Deacon, HJ; Grün, R; Mackay, A; Mitchell, P; Vogelsang, R; Wadley, L (2008). "Ages for the Middle Stone Age of southern Africa: implications for human behavior and dispersal". Science. 322 (5902): 733–5. CiteSeerX10.1.1.469.1059. doi:10.1126/science.1162219. PMID18974351.