Size variation in early human mandibles and molars from Klasies River, South Africa: comparison with other middle and late Pleistocene assemblages and with modern humans.
Royer DF, Lockwood CA, Scott JE, Grine FE. Size variation in early human mandibles and molars from Klasies River, South Africa: comparison with other middle and late Pleistocene assemblages and with modern humans. Am J Phys Anthropol. 2009 Oct; 140(2):312-23.