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2. Dickinson, F.N., H.D. Norman. R. L. Powell, L.G. Waite, and B. T. McDaniel. 1976. Procedures used to calculate the USDA-DHIA Modified Contemporary Comparison. Page 18 in USDA Prod. Res. Rep. No. 165, Washington. DC.
3. Use of all relatives in intraherd prediction of breeding values and producing abilities;Henderson;J. Dairy Sci.,1975
4. Comparison of alternative computational procedures in BLUP sire evaluation;Misztal;Z. Tierz. Zuchtungsbiol.,1985