O. J. Schmitt, “‘They fought with the Turks, against their will, but it was not possible otherwise’: Observations on Serbian-Ottoman Collaboration between the Battle of Kosovo and the Fall of the Serbian Despotate (1389–1459)”, ZfB, vol. 58, no. 1+2, Apr. 2023, Accessed: Oct. 16, 2026. [Online]. Available: https://zeitschrift-fuer-balkanologie.de/index.php/zfb/article/view/647