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Haslgrübler, Petra, Krautzer, Bernhard, Graiss, Willy, Tamegger, Christian 2011 Quality and quantity standards for native seeds. In: Conference proceedings : International conference " Using species rich semi-natural grassland to obtain seed for the restoration of degraded areas ", Agricultural faculty, Legnaro (PD, Italy) 21-22.09 2011. University of Padova : Department of Environmental Agronomy and Crop Production, [S.l.]: 37-40.