Y. G. . Kropyvka, V. S. . Bomko, and S. P. . Babenko, “HIGH-YIELDING COWS PERFORMANCE AND ELEMENTS METABOLISM IN THE SECOND 100 DAYS OF LACTATION UNDER THE USING OF ZINC, MANGANESE AND COBALT MIXED LIGAND COMPLEXES”, Scient.Prog.&Innov., no. 1, pp. 217–225, Mar. 2021.