1. Baker RJ (1986) Selection indices in plant breeding. CRC Press, Boca Raton, pp 97–108
2. Becker H (1993) Pflanzenzüchtung. (In German) Verlag Eugen Ulmer, Stuttgart, pp 129–132
3. Cochran WG (1951) Improvement by means of selection. In: Proc 2nd Berkeley Symp Math Stat Prob, pp 449–470
4. Federer WT, Sprague GF (1947) A comparison of variance components in corn yield trials: I. Error, tester × line, and line components in top-cross experiments. J Am Soc Agron 39:453–463
5. Finney DJ (1966) An experimental study of certain screening processes. J R Stat Soc B 28:88–109