info:oai:orgprints.org:7292info:ofi/fmt:xml:xsd:bookSchmutzUlrichSchmutz, Dr UlrichRaynsFrancisRayns, Dr FrancisFirthChrisFirth, Mr ChrisRosenfeldAntonRosenfeld, Dr AntonThorup-KristensenKristianThorup-Kristensen, Dr KristianZhangKefengZhang, Dr KefengRahnCliveRahn, Dr Clive2006Environmental and economic modelling of organic, stockless, horticultural crop rotations proceeding