Koltun, Y., and V. Rusyn. “State of Hemopoesis in Dairy Cows for the Prophylaxis of Microelements Insufficiency”. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series: Veterinary Sciences, Vol. 19, no. 77, Mar. 2017, pp. 41-44, doi:10.15421/nvlvet7710.