Lilia Dodekova

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia

Volume 24 5 October 1994

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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Volume 19 2 April 1989

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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Volume 16 6 December 1986