1
2
3
4
5
Published: 1989
6
Other Authors:
“...Savova, Elena Vălčova 1918-2011...”
7
Published: 1978
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Published: 1978
9
Published: 1972
Superior document: Sto godini Bălgarska Akademija na Naukite 1869 - 1969 3
10
Published: 1966