TY  - JOUR 
T1  - Modulation by steroid hormones of a ''sexy'' acoustic signal in an Oscine species, the Common Canary Serinus canaria
JO  - Anais da Academia Brasileira de Ciências
A1  - Rybak, Fanny
A1  - Gahr, Manfred
SN  - 0001-3765
UL  - 10.1590/S0001-37652004000200026
VL  - 76 
Y1  - 2004
PB  - Brasil 
ER  -