“The Royal Charter of king Tvrtko I Kotromanić issued to the Ragusan commune (Žrnovnice, 10th April 1378 – Trstivnica, 17th June 1378)” (2022) Godišnjak Centra za balkanološka ispitivanja, (45), pp. 225–246. doi:10.5644/Godisnjak.CBI.ANUBiH-45.79.