1. Anderson, D. O.: The relation between single and double cross yields in corn. J. Amer. Soc. Agron, 30, 209–211 (1938).
2. Anderson, E. G.: The application of chromosomal techniques to maize improvement. Brookhaven Symp. Biol. 9, 23–36 (1956).
3. Andrés, J. M.: Heterosis in maíces dentados y córneos. Idia 1952 (54), Junio: 16.
4. Burton, G. W.: The performance of various mixtures of hybrid and parent inbred Pearl Millet, Pennisetum glaucum (L) R.BR. J. Amer. Soc. Agron. 40, 908–915 (1948).
5. Cold Spring Harbor Symposia on Quantitative Biology, Vol. 20: Population Genetics: The nature and causes of genetic variability in populations. 1955.