Istorii︠a︡ na ShumenBiser Georgiev, Vasil Paraskevov, Dimitŭr Ignatovski, Ivo Topalilov, Stefan Minkov, Todor Todorov · First published 2019Open the Tome
Transition from late paganism to early Christianity in the architecture and art in the BalkansIvo Topalilov, Biser Georgiev · First published 2016Open the Tome
