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HÁJEK, Michal; Petra HÁJKOVÁ; Desislava SOPOTLIEVA; Iva APOSTOLOVA a Nikolay VELEV. The Balkan wet grassland vegetation: a prerequisite to better understanding of European habitat diversity. Plant Ecology. Netherlands: Springer, 2008, roč. 195, č. 2, s. 197-213. ISSN 1385-0237.Podrobněji: https://is.muni.cz/publication/766957/cs