ARTICLES & PAPERS

1. Cook, R. D. and Su, Z. Scaled Envelopes: Scale Invariant and Efficient Estimation in Multivariate Linear Regression. Biometrika. To appear.
   
   
2. Cook, R. D., Helland, I. S. and Su, Z. Envelopes and Partial Least Squares Regression. Journal of the Royal Statistical Society: Series B. To appear.
   
   
3. Su, Z. and Cook, R. D. (2013), Estimation of Multivariate Means with Heteroscedastic Error Using Envelope Models. Statistica Sinica, 23, 213-230.
   
   
4. Su, Z. and Cook, R. D. (2012), Inner Envelopes: Efficient Estimation in Multivariate Linear Regression. Biometrika, 99, 687-702.
   
   
5. Su, Z. and Cook, R. D. (2011), Partial Envelopes for Efficient Estimation in Multivariate Linear Regression, Biometrika, 98, 133-146.
   
   
6. Cook, R. D., Li, B., Chiaromonte, F. and Su, Z. (2010), Rejoinder of “Envelope Models for Parsimonious and Efficient Multivariate Linear Regression”, Statistica Sinica, 20, 999-1010.