Grabarczyk T, Kita J, Pogońska-Pol M, Voloshchuk M, editors. Non-Dynastic Elites of the Ruthenian (?) Origin in the Military Service of the Piasts of the End of the 12th – the First Half of the 14th Century. Some Anthroponymical Observations. In: Narzędzia wojny [Internet]. Poland: Lodz University Press; 2023 [cited 2026 Jan. 26]. pp. 37-53. (, editor. Faces of war; vols. 8). Available from: https://www.press.uni.lodz.pl/index.php/wul/catalog/book/583/chapter/1565