[The population of Bulgaria during the Middle Ages (seventh to fourteenth centuries)].
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D002031:Bulgaria; D003469:Culture; D003710:Demography; D019049:Developed Countries; D005006:Ethnicity; D005060:Europe; D005061:Europe, Eastern; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011158:Population Growth; D012106:Research; D012942:Social Sciences; D013223:Statistics as Topic
Bulgaria; Cultural Background; Demographic Factors; Demography; Developed Countries; Eastern Europe; Estimation Technics; Ethnic Groups; Europe; Historical Demography; Historical Survey; Population; Population Characteristics; Population Dynamics; Population Growth; Population Growth Estimation; Research Methodology; Social Sciences