1. Sustainable Agriculture, A Technical Report;Agricultural Ministry,1991
2. New Farmers Strategies—Aims and Possibilities,1992
3. Danish Agriculture Year 2000 and 2010,1993
4. Evaluation of National Action Plans for Reduction of Nutrient Discharges from Agriculture to the Baltic Sea;Bonde,1992
5. Sign posts for a code of good agricultural practices for the use of organic and inorganic fertilizers;Bonde,1992