[1]
Hauziński, J. 2014. The Connections of the Ottomans state crisis with the neighbouring vassal states (1403-1413). Rumelian course. Balcanica Posnaniensia. Acta et studia. 21, (Jan. 2014), 13–24. DOI:https://doi.org/10.14746/bp.2014.21.2.