Dimitŭr Filipov

• Bulgaria
• Dimitŭr Stoi︠a︡nov po puti︠a︡ na ideala
• Fertility and family surveys in countries of the ECE region
• Industrializatsii︠a︡ta v razvivashtite si strani
• Leli︠a︡ Vanga
• Nauchno-tekhnicheskata revoliutsiia i razvivashtite se strani
• Nauchno-tekhnicheskata revoli︠u︡tsii︠a︡ i razvivashtite se strani
• Nauka, tekhnika, kommunizŭm
• Slavi︠a︡nskii︠a︡t svi︠a︡t