1. Baer, A., Stevenson, A. C.: Stillbirths and infant mortality in twins. Ann. hum. Genet. 25, 131 (1961).
2. Benieschke, K.: Comparative mammalian cytogenetics. Berlin-Heidelberg-New York: Springer 1969.
3. Bhargava, I., Balakrishnan, S., Puri, R. K.: Chromosomal aberrations in children born of consanguineous marriages. International Symposium on Human Genetics, Andhra University Waltair, März 1971.
4. Bixler, D., Conneally, P. M., Fogh-Andersen, P.: Incidence of cleft lip and cleft palate in offspring of cleft parents in Denmark. Amer. J. hum. Genet. 22, 20a (1970) (Abstract).
5. Blandau, R. J.: The effects on development when eggs and sperm are aged before fertilization. Ann. N.Y. Acad. Sci. 57, 526 (1954).