@book{orgprints4156,
           title = {Sorten f\"ur den biologischen Obstbau auf Hochst\"ammen},
          author = {Andreas H\"aseli and Andreas Kranzler and Franco Weibel and Gerlinde Handlechner and Bernd Kajtna and Andreas Spornberger and Karl Waltl},
       publisher = {Forschungsinstitut f\"ur biologischen Landbau (FiBL), CH-Frick},
            year = {2004},
          series = {Sortenliste},
        keywords = {Bioobstbau, Hochstammbau},
             url = {http://orgprints.org/4156/}
}