info:oai:orgprints.org:9804info:ofi/fmt:xml:xsd:bookGlemnitzMichaelGlemnitz, MichaelRadicsLászlóRadics, LászlóMackensenKerstinMackensen, Kerstin2007Weed Management in Organic Farming in the New EU Member States and the Acceding Countries - Status Quo and Main Limitationsproceeding