Tchernev, Georgi, Hristo Mangarov, and Anastasiya Atanasova Chokoeva. “Khan Krum - ʺThe Fearsomeʺ: A Noble Bulgarian With Iris-Fibroma?”. Open Access Macedonian Journal of Medical Sciences 5, no. 5 (August 10, 2017): 696–697. Accessed May 3, 2024. https://oamjms.eu/index.php/mjms/article/view/oamjms.2017.156.