@unpublished{orgprints13184,
           title = {Organic Agriculture in Europe. Statistics 2006},
          author = {Helga Willer},
            year = {2008},
        keywords = {Organic farming statistics, development of  organic farming, Europe, European Union},
             url = {http://orgprints.org/13184/},
        abstract = {The Powerpoint presentation summarizes the main European results of the global survey on organic farming 2008. }
}