Nikolaĭ Angelov Kŭnev

• Simeonova Bŭlgarii︠a︡ v istorii︠a︡ta na evropeĭskii︠a︡ i︠u︡goiztok = Emperor Symeon's Bulgaria in the history of Europe's South-East
• Vladetel, dŭrzhava i t︠s︡ŭrkva na Balkanite prez Srednovekovieto