1. Ackerly, S.C. Kinematic analysis of accretionary shell growth, with examples from brachiopods and molluscs. Paleobiology 1989; 15:147–164.
2. Agnèse, J.F., Teugels, G.G., Galbusera, P., Guyomard, R., and Volckaert, F. Morphometric and genetic characterization of sympatric populations of Ciarías gariepinus and C. anguillaris from Senegal. Journal of Fish Biology 1997; 50:1143–1157.
3. Aldridge, A.E. Brachiopod outline and the importance of the logarithmic spiral. Paleobiology 1998; 24:215–226.
4. Altman, D.G. Practical statistics for medical research. London: Chapman and Hall, 1991.
5. Anderson, T.W. An introduction to multivariate statistical analysis. New York: Wiley, 1958.