?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Borivoj&rft.aulast=Sarapatka&rft.au=Sarapatka%2C+Borivoj&rft.title=Monitoring+Soil+Characteristics+in+Organic+Farming%3A+A+Comparison+of+Field+vs.+Laboratory+Methods&rft.date=2007&rft.genre=proceeding