Zawacka, M., M. Gesek, D. Michalik, and D. Murawska. “Changes in the Content of Edible and Non-Edible Components and Distribution of Tissue Components in Cockerels and Capons”. Spanish Journal of Agricultural Research, Vol. 16, no. 1, Apr. 2018, p. e0602, doi:10.5424/sjar/2018161-11834.