Radchikov, V., V. Tzai, A. Kot, T. Sapsaleva, G. Besarab, B. Gutyj, V. Karpovskyi, and V. Trokoz. “Natural Biologically Active Additive in Feeding Calves”. Ukrainian Journal of Veterinary and Agricultural Sciences, Vol. 4, no. 3, Dec. 2021, pp. 28-32, doi:https://doi.org/10.32718/ujvas4-3.05.