1. An Introduction to Human Evolutionary Anatomy;Aiello,1990
2. Information theory and an extension of the maximum likelihood principle;Akaike,1973
3. Morphologie von Wirbelsäule und Brustkorb;Ankel,1965
4. Einführung in die primatenkunde;Ankel,1970
5. Vertebral morphology of fossil and extant primates;Ankel,1972