1. Division of Organic Farming, Department of Sustainable Agricultural Systems, University of Natural Resources and Life Sciences, Vienna, Austria
2. Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain
3. Bioversity International, Spain
4. Bioversity International, Netherlands
5. Institute for Development Research, Department of Sustainable Agricultural Systems, University of Natural Resources and Life Sciences, Vienna, Austria