Zigo, F. .; Vasiľ, M. .; Elečko, J. .; Zigová, M. .; Farkašová, Z. . Mastitis Pathogens and Their Resistance Against Antimicrobial Agents in Herds of Dairy Cows Situated in Marginal Parts of Slovakia. Potr. S. J. F. Sci. 2018, 12, 285-291.