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Revised check-list of digger wasps (Hymenoptera: Sphecidae) from the collection of N. Nedelkov at the National Museum of Natural History in Sofia
Vol 12, Page 5
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Cyclopides (Crustacea: Copepoda) des eaux souterraines de Bulgarie: distribution et remarques morphologiques
Vol 12, Page 17
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Xylocoris formicetorum (Boheman, 1844) (Heteroptera: Anthocoridae), a new member of the myrmecophilous fauna of the Balkan Peninsula
Vol 12, Page 29
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Review of Anthicidae (Coleoptera) from Bulgaria
Vol 12, Page 33
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Macrolepidoptera and Microlepidoptera (Alucitidae and Pyralidae) recorded in Bulgaria, 12—24 September 1995 (Lepidoptera)
Vol 12, Page 41
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On the distribution, biology and ecology of amphibians and reptiles in the Derventski Heights and the Sakar Mountain, South-East Bulgaria
Vol 12, Page 59
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Late Pleistocene Avifauna of the Razhishkata Cave, Western Bulgaria
Vol 12, Page 71
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Biochronology and zoogeographic affinities of the Villafranchian faunas of Bulgaria and South Europe
Vol 12, Page 89
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Soil algae in museum samples from some Southwest Asia sites. I
Vol 12, Page 129