1. Conversion to organic arable farming in The Netherlands: a dynamic linear programming analysis;Acs;Agric. Syst.,2007
2. World Agriculture Towards 2030/2050 - The 2012 Revision;Alexandratos,2012
3. Fertilizer value and weed seed destruction potential of digested manure;Allan,2003
4. AMI Marktbilanz Öko-Landbau 2010;AMI,2010
5. AMI Markt Bilanz Öko-Landbau 2012;AMI,2012