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Cookie SettingsLanguage: | eng bul |
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Publisher: | Sofia, Bulgaria : University of Sofia in collaboration with SCS-Consulting Ltd 2007- |
ISSN: |
1313-9118 |
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Language: | bul eng |
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Publisher: | Sofii͡a : Nat͡sionalno druzhestvo "Ekologichno inzhenerstvo i opazvane na okolnata sreda" Национално дружество "Екологично инженерство и опазване на околната среда" |
ISSN: |
2367-8429 |
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Language: | bul eng |
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Publisher: | Sofia, Bulgaria : SCS Consulting, in collaboration with the Belogradchik Society for Local History and Folk Studies 2010- |
ISSN: |
1314-0256 |
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