Kotowicz PN. The Polish-Ruthenian Borderland in 1340 and the Fall of the „Zamczysko” Hillfort in Sanok-Biała Góra. FAH [Internet]. 2017 Nov. 28 [cited 2024 Nov. 22];30:35-51. Available from: https://journals.iaepan.pl/fah/article/view/2080