1. L. S. Aiken and S. G. West. Multiple Regression: Testing and Interpreting Interaction. Sage Publications, Newbury Park, CA, 1991.
2. M. Aitkin and N. Longford. Statistical modelling issues in school effectiveness studies. Journal of the Royal Statistical Society, Series A, 149: 1–43, 1986. (with discussion).
3. L. Anselin. Spatial econometrics. In B. H. Baltagi, editor, A Companion to Theoretical Econometrics, pages 310–330. Blackwell, Malden, MA, 2001.
4. M. Arellano. Panel Data Econometrics. Oxford University Press, Oxford, UK, 2003.
5. T. Asparouhov. Sampling weights in latent variable modeling. Structural Equation Modeling, 12:411–434, 2005.