1. Spermatogenesis and its endocrine control;Burger,1976
2. Endocrine control of adult testicular function;diZerega,1981
3. Effect of long term treatment with gonadotropic hormones on in vitro metabolism of (3H) progesterone in human testicular tissue;Berg;Int J Androl,1978
4. Laboratory manual for the examination of human semen and semen-cervical mucus interaction;Belsey,1980
5. Clinical use of the turbidimetric analysis of sperm motility: comparison with visual techniques;Levin;Fertil Steril,1981