1. Adkins Regan, E. K. Hormonal bases of sexual differentiation in birds. In: Balthazart, J., ed. Hormones, brain and behaviour in vertebrates. vol. 1. Sexual differentiation, neuroanatomical aspects, neuropeptides and neurotransmitters. Basel: Karger; 1990:1–14.
2. Organizational and activational effects of sex steroids on brain and behavior;Arnold;Horm. Behav.,1985
3. Morphometric studies demonstrate that aromatase-immunoreactive cells are the main target of androgens and estrogens in the quail medial preoptic nucleus;Aste;Exp. Brain Res.,1994
4. Sexual dimorphism of vasotocinergic structures in quail nucleus of stria terminalis;Aste;Ital. J. Anat. Embriol.,1996
5. The catecholaminergic system of the quail brain;Bailhache;J. Comp. Neurol.,1993