1. Average information REML: An efficient algorithm for variance parameter estimation in linear mixed models;Gilmour;Biometrics,1995
2. Gilmour, A.R., Cullis, B.R., Welham, S.J., Thompson, R., 1999. ASREML reference manual. Biometric Bulletin 3, NSW Agriculture, Locked Bag 21, Orange, NSW 2800, Australia, 210pp.
3. Lane, P.W., 1998. Predicting from unbalanced linear or generalised linear models. Proceeding of Compstat 98, Contributed Papers.
4. Analysis of covariance and standardisation as instances of prediction;Lane;Biometrics,1982
5. SAS System for Mixed Models;Littell,1996