?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Hochreiter&rft.au=Hochreiter%2C+Claudia&rft.aufirst=Claudia&rft.inst=University+of+Natural+Resources+and+Life+Sciences%2C+Vienna+&rft.date=November+2011&rft.title=Certified+with+trust+and+solidarity%3F+Attitude%2C+benefits+and+challenges+of+organic+farmers+in+Participatory+Guarantee+Systems%2C+Cacahoat%C3%A1n%2C+Mexico&rft.degree=Masters