Coolidge, Frederick L; Wynn, Thomas (2001). "Executive Functions of the Frontal Lobes and the Evolutionary Ascendancy of Homo sapiens". Cambridge Archaeological Journal. 11 (3): 255–260. doi:10.1017/S0959774301000142.
Wynn, Thomas; Coolidge, Frederick L (2010). "Working Memory: Beyond Symbolism and Language". Current Anthropology. 51 (S1). doi:10.1086/650526. S2CID142942270.
Wynn, Thomas; Coolidge, Frederick L (2010). "Working Memory: Beyond Symbolism and Language". Current Anthropology. 51 (S1). doi:10.1086/650526. S2CID142942270.