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1
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2Published 1987Subjects: “...Bulgarian language History Congresses....”
Conference Proceeding Book -
3Published 1969Subjects: “...Bŭlgarska akademii︠a︡ na naukite History....”
Book -
4Published 1983Subjects: “...Bulgarian literature History and criticism Congresses....”
Conference Proceeding Book -
5Published 1997Subjects: “...Slavs, Southern History Congresses....”
Conference Proceeding Book -
6Published 1980Subjects: “...Church Slavic literature Bulgaria History and criticism Congresses....”
Book -
7
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8Published 1976“...Thrace History To 1362 Congresses....”
Book -
9Published 1982“...Bulgaria Research History Congresses....”
Conference Proceeding Book