1. Angell, B., J. Francis, and A. Chalmers, C. Flint. 1997. Agriculture and the rural economy: Information and advice needs. London: DEFRA.
2. Arce, A.C., and N. Long. 1992. The dynamics of knowledge: Interfaces between bureaucrats and peasants. In Battlefields of knowledge: The interlocking theory and practice of social research and development, eds. N. Long, and A. Long, 211–246. London: Routledge.
3. Auerswald, K., and M. Kutilek. 1998. A European view to the protection of the soil resource. Soil Tillage Research 46: 9–11.
4. Bager, T., and J. Proost. 1997. Voluntary regulation and farmers’ environmental behaviour in Denmark and The Netherlands. Sociologia Ruralis 37 (1): 79–90.
5. Bergsma, E. 1996. The bridge between land use and advisers. Land Husbandry, the International Journal of Soil and Water Conservation 1: 81–93.