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AuthorAstrofizikas laboratorija (1)
Latvijas PSR Zinātņu akadēmija (1)
SubjectAstrofizika (1)
Astronomi (1)
Astronomija (1)Astronomijas vēsture (1)Kosmonautika (1)NATURAL SCIENCES (1)Observatorijas (1)Planētas (1)Radioastronomija (1)Saule (1)... View MoreDate Issued
1965 (1)