1. Asher JL Fisher RC 2000 Alternate CPS sampling variance structures for constrained and unconstrained county models http://www.census.gov/did/www/saipe/publications/files/tech.report.4.pdf
2. Basel WW Hawala S Powers D 2010 Serial comparisons in small domain models: A residual-based approach http://www.census.gov/did/www/saipe/publications/files/BaselHawalaPowers2010asa.pdf
3. Bell WR 1999 Accounting for uncertainty about variances in small area estimation Bulletin of the International Statistical Institute
4. Statistical Decision Theory and Bayesian Analysis