Kárpáti, Béla Imre, Csaba Sarudi, Attila Csorbai, and István Marton. 2004. “The Economic and Environmenteconomic Analysis of the Hungarian Grey Cattle”. Acta Agraria Kaposváriensis 8 (1): 33-49. https://journal.uni-mate.hu/index.php/aak/article/view/1677.