1. Multivariate statistics;Bartlett,1965
2. The evaluation of characteristics of the skull, hands and feet for primate taxonomy;Biegert,1963
3. A Comparative Study of Evolutionary Rates in Hominoids;Bilsborough;D. Phil. thesis,1971
4. Rythmes évolutifs comparés des hominidés et des mammifères Pléistocènes;Boné,1962