[Studying ethnic structure using censuses in Bulgaria].
Arkadiev
D
D
D002031:Bulgaria; D019352:Censuses; D003469:Culture; D003710:Demography; D019049:Developed Countries; D005006:Ethnicity; D005060:Europe; D005061:Europe, Eastern; D011153:Population; D011154:Population Characteristics; D012106:Research
Bulgaria; Census; Cultural Background; Demographic Factors; Developed Countries; Eastern Europe; Ethnic Groups; Europe; Historical Survey; Population; Population Characteristics; Population Statistics; Research Methodology