Pochukalin , A. Ye., S. V. Pryima, and O. V. Rizun. “Economic Useful Signs of Cows of the Brown Carpathian Breed (evolution Context)”. Bulletin of Sumy National Agrarian University. The series: Livestock, no. 3 (38) (September 30, 2019): 32-36. Accessed May 5, 2024. https://www.snaubulletin.com.ua/index.php/ls/article/view/104.