100 godini diplomaticheski otnoshenii︠a︡ mezhdu Bŭlgarii︠a︡ i Sŭedinenite Shtati : 1903-2003 = 100 years of diplomatic relations between Bulgaria and the United States
Moreto v mezhdunarodnite otnoshenii︠a︡ i vŭnshnata politika na Bŭlgarii︠a︡ 1944-1949 g. = More v mezhdunarodnykh otnoshenii︠a︡kh i vo vneshneĭ politke Bolgarii 1944-1949 gg. = The sea in the international relations and the foreign policy of Bulgaria 1944-1949