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1Published 1978Subjects: “...World War, 1939-1945 Jews Bulgaria Sources....”
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2Published 1963“...Czechoslovakia Relations Bulgaria....”
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3
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4
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5Published 1969“...Bulgaria History Sources....”
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6Published 1969“...Bulgaria History Sources....”
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7
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8Published 1977“...Bulgaria Relations Soviet Union Sources....”
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9
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10Published 1980“...Bulgaria History Sources....”
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11Published 1981“...Bulgaria Antiquities Congresses....”
Conference Proceeding Book