Nadja Ognjanova-Rumenova

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Volume 47 2 November 2018

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Hungarian Natural History Museum, Department of Botany, 1476 Budapest, P.O. Box 222, Hungary

Volume 44 1-3 December 2015

Laboratory on Seismotectonics, Geological Institute at Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str. Bl. 24, 1113 Sofia, Bulgaria
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Department on palaentology, stratigraphy and sedimentology, Geological Institute at Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str. Bl. 24, 1113 Sofia, Bulgaria

Volume 39 1-2 September 2010

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

Volume 36 3-4 December 2007

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

Volume 31 1-2 June 2001

Departament of Botany, Biological Faculty, Sofia University, Sofia 1000
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Volume 27 1-2 August 1997