Pochukalin, A. Y., S. V. Pryima, and O. V. Rizun. “BREEDING VALUE OF BREEDING BULLS OF THE HOLSTEIN BREED BY LINES”. Bulletin of Sumy National Agrarian University. The Series: Livestock, no. 2, Sept. 2022, pp. 49-53, doi:10.32845/bsnau.lvst.2022.2.7.