V. Z. Trokhymenko, T. I. Kovalchuk, V. V. Zakharin, L. M. Bezverkha, and V. Y. Mamchenko, “REPRODUCTIVE ABILITY, PRODUCTIVITY AND QUALITY OF COWS’ MILK AFTER THE APPLICATION OF A BIOLOGICALLY ACTIVE PREPARATION”, ls, no. 3, pp. 71-77, Oct. 2023.