1. Anderson, T. W. (1984). An Introduction to Multivariate Statistical Analysis, 2nd Edition. New York: Wiley-Interscience.
2. Extending SIR: The Weighted Chi-Square Test;Bura;Journal of the American Statistical Association,2001
3. Bura, E. and Pfeiffer, R. M. (2008). On the distribution of the left singular vectors of a random matrix and its applications. Statistics and Probability Letters, doi: 10.1016/j.spi.2008.01.097.
4. Cook, R. D. (1998). Regression Graphics: Ideas for studying regressions through graphics. New York: Wiley.
5. Testing predictor contributions in sufficient dimension reduction;Cook;Annals of Statistics,2004