1.
Gaidarska VM, Ignatova MM, Metodieva CH, Liutskanov PI. Dairy cattle in Bulgaria – complex assessment dairy farms. Anim. Breed. and Genet. [Internet]. 2018Oct.26 [cited 2019Aug.18];550:46-5. Available from: https://abg-journal.com/index.php/journal/article/view/158