K. Von Kossel de Andrade Silva, G. Lôbo-Hajdu, and M. Alice S. Alves, “Sex determination in Turdus amaurochalinus (Passeriformes: Muscicapidae): morphometrical analysis supported by CHD gene”, Rev. Biol. Trop., vol. 59, no. 2, pp. 789–794, Jun. 2011.