1. Orrorin tugenensis femoral morphology and the evolution of hominin bipedalism;Richmond;Science,2008
2. Birth and human evolution: anatomical and obstetrical mechanics in primates;Abitbol,1996
3. Land of the moon-children: the primitive san blas culture in flux;Keeler,1956
4. An introduction to human evolutionary anatomy;Aiello,1990
5. The decent of man, and selection in relation to sex;Darwin,1871