C. Rajnai, É. E. Biber, and G. Demeter, “New evaluation of reproduction parameters of sows and its economic relation”, AAK, vol. 5, no. 3, pp. 25–40, Oct. 2001, Accessed: Dec. 06, 2025. [Online]. Available: https://journal.uni-mate.hu/index.php/aak/article/view/1588