Nikolaĭ Angelov Kŭnev

Vladetel, dŭrzhava i t︠s︡ŭrkva na Balkanite prez Srednovekovieto

Simeonova Bŭlgarii︠a︡ v istorii︠a︡ta na evropeĭskii︠a︡ i︠u︡goiztok = Emperor Symeon's Bulgaria in the history of Europe's South-East