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Ecological Status Assessment of the Strumica River Watershed Based on Macroinvertebrates – A Step Towards the Implementation of the EU Water Framework Directive in the Republic of North Macedonia
(Belgrade: Serbian Association for Water Protection, 2019)
First Report of Branchiobdella kozarovi SUBCHEV, 1978 (Annelida: Clitellata) from the Western Bulgaria, with Remarks on its Recent Distribution
(Belgrade: The Serbian Water Pollution Control Society, 2016)