1. Seasonal fluctuations in the sexual activity of Awassi, German Mutton Merino, Border Leicester and Dorset Horn rams;Amir;J. Agric. Sci.,1965
2. A simple and clinically useful method for plasma testosterone-like substances by competitive protein binding;Anderson;Clin. Chim. Acta,1970
3. Mesure des oestrogènes et des androgènes testiculaires et plasmatiques dans l'espèce ovine par des microméthodes de chromatographie en phase gazeuse: influence de l'age, de la saison et du cycle diurne;Attal,1970
4. Studies of neuroendocrine mechanisms influencing seasonal variations in semen production and plasma hormone levels in rams;Barrell,1976
5. Prolactin restores plasma testosterone levels and stimulates testicular growth in hamsters exposed to short day-length;Bartke;Endocrinology,1975