1. Alexander, R.M.N.: The Chordates. Cambridge University Press, Cambridge, UK (1975)
2. Alexander, R.M.N.: Elastic Mechanisms in Animal Movement. Cambridge University Press, Cambridge, UK (1988)
3. Alexander, R., Mc, N., Dimery, N.J., Ker, R.F.: Elastic structures in the back and their role in galloping in some mammals. J. Zool. 201, 135–152 (1985)
4. Anonymous: Tiger claw. KfK Nachrichten (1995)
5. Arms, A.: Lokomotionsverhalten und fortbewegungsweisen kleiner Primatenarten (Saguinus oedipus und Saimiri boliviensis peruvianus). Masters thesis, Fac. Biology, Göttingen (1998)