Diplomatika i istoriografija: projekat edicije povelјa cara Ludviga Pobožnog i njegovi rezultati (Žarko Vujošević) “Between Three Seas: Borders, Migrations, Connections”, Third Biennial Conference of the Medieval Central Europe Research Network (MECERN), Zagreb, 12–14 April 2018 (Miloš Ivanović, Neven Isailović)