Gráff, M., and Ákos Benk. “Live Weight Change Examinations of Indigenous Speckled Hens on a Farm in Hódmezővásárhely”. Review on Agriculture and Rural Development, vol. 1, no. 2, Jan. 2012, pp. 541-7, https://iskolakultura.hu/index.php/rard/article/view/13265.