1. Mean Square Error of Prediction as a Criterion for Selecting Variables
2. 1971b the prediction sum of squares as a criterion for selecting predictor variables. Univ. of Kentucky, Dept. of Statistics, Tech. Report 23.
3. 1972 Biased prediction using multiple linear regression. Univ. of Kentucky, Dept. of Statistics, Tech. Report 36.
4. The Jackknife--Toy, Tool or Two-Edged Weapon?