Ristanic, M., A. . Niksic, M. . Niketic, S. Jelisic, M. Rajkovic, U. Glavinic, and Z. Stanimirovic. “Use of Allele Specific Pcr to Investigate the Presence of β-Casein Polymorphism in Holstein-Friesian Cows”. Veterinarski Glasnik, vol. 76, no. 1, Apr. 2022, doi:10.2298/VETGL211125004R.