Sapundzhiev, Emil, Mihail Chervenkov, Yanislav Iliev, Seven Mustafa, and Maria Dimitrova. “MORPHOFUNCTIONAL INVESTIGATION OF BROWN BEAR (URSUS ARCTUS) STOMACH”. TRADITION AND MODERNITY IN VETERINARY MEDICINE 3, no. 2 (November 23, 2018): 50–54. Accessed September 16, 2026. https://scij-tmvm.com/index.php/pub/article/view/69.