info:oai:orgprints.org:9961info:ofi/fmt:xml:xsd:bookBosJ.F.F.P.Bos, J.F.F.P.de HaanJ.J.de Haan, J.J.SukkelW.Sukkel, W.SchilsR.L.M.Schils, R.L.M.2007Comparing energy use and greenhouse gas emissions in organic and conventional farming systems in the Netherlandsproceeding