Conference Paper
Gahr, M.: The role of estrogen in the differentiation of the vocal control system of songbirds. In: Perspectives in Comparative Endocrinology, Vol.
1994, pp. 455 - 463 (Ed. Davey, K. G.). XII International Congress of Comparative Endocrinology, Toronto, May 16, 1993 - May 21, 1993. National Research Council of Canada, Ottawa (1994)