1. Manual of quantitative genetics;Becker,1975
2. Improvement by means of selection;Cochran,1951
3. Multiple-stage index selection;Cunningham;Theor. Appl. Genet.,1975
4. Effectiveness of selection on progeny performance as a supplement to earlier culling;Dickerson;J. Agric. Res.,1944
5. The genetic basis for constructing selection indexes;Hazel;Genetics,1943