1. Regression and the Moore-Penrose pseudoinverse;Albert,1972
2. Theory and application of the linear model;Graybill,1976
3. On comparing restricted least squares estimators;Guilkey;Journal of Econometrics,1981
4. Regression estimation from grouped observations;Haitovsky,1973
5. NFD: Noncentral F distribution;Han;The American Statistician,1985