Patreeva, L., Nezhlukchenko, T., LugovyŃ–S., Strikha, L., & Zaitsev, E. (2019). Assessment of the implementation of the heritage breeding productivity of the Holstein Breed. Bulletin of Sumy National Agrarian University. The Series: Livestock, (1-2(36-37), 87-94. https://doi.org/10.32845/bsnau.lvst.2019.1-2.13