1. External and internal factors in sexual activity. Effect of irradiation with different wavelengths on the mechanisms of photo stimulation of the hypophysis and on testicular growth in the immature duck;Benoit;Yale J. Biol. Med.,1944
2. Decreased light intensity alters the perception of day length by male European starlings (Sturnus vulgaris);Bentley;J. Biol. Rhythm.,1998
3. Specific phase relation (8-hr) of neuro-transmitter precursor drugs alters body weight, plasma thyroxine, testes and cloacal gland responses of Japanese quail;Bhatt;Pavo,1992
4. The effects of combined serotonin and dopamine precursor application during testicular photosensitivity vs photofractoriness of the Red headed bunting, Emberiza bruniceps;Bhatt;J. Interdiscipl. Cycle Res.,1992
5. Age-dependent alteration of short day responses following circadian administration (8hr apart) of serotonin and dopamine precursors in Japanese quail;Bhatt;Pavo,1995