Loboda, A. V., and D. A. Bardash. “EXTERIOR FEATURES OF COWS FIRSTBORN OF SUMY INTRABREED TYPE OF UKRAINIAN BLACK-AND-WHITE DAIRY CATTLE, ESTIMATED BY THE METHOD OF LINEAR CLASSIFICATION”. Animal Breeding and Genetics 570 (April 24, 2019): 87-94. Accessed August 18, 2022. https://abg-journal.com/index.php/journal/article/view/225.