Shkromada, Oksana, Tatiana Fotina, and Roman Petrov. “Study of the Efficiency of Using Biogenic Metals for Feeding Calves”. ScienceRise: Biological Science, no. 4 (29) (December 30, 2021): 25–29. Accessed November 23, 2024. https://journals.uran.ua/sr_bio/article/view/249859.