1. Aitken, W. (1998) The Environment and the Economy. Centre for Resource Studies Special Paper. Kingston: Queens University.
2. Arts, G., van Buuren, M., Jongman, R., Nowicki, P., Wasscher, D. and Hoek, I. (1995) Ecological networks. Special Issue. Landschap 3, 3–130.
3. Bischoff, N.T. and Jongman, R. (1993) Development of Rural Areas in Europe: the Claim for Nature. Netherlands Scientific Council for Government Policy. The Hague: SDU.
4. Bryden, J. (1994) `Some preliminary perspectives on sustainable rural communities’. In Bryden, J. (ed.) Towards Sustainable Rural Communities. The Guelph Seminar Series. Guelph: The Arkleton Trust and University of Guelph, pp. 41–50.
5. Buuren, M. van and Kerkstra, K. (1993) ‘The framework concept and the hydrological landscape structure: a new perspective in the design of multifunctional landscapes’. In Vos, W. and Opdam, P. (ed.) Landscape Ecology of a Stressed Environment. London: Chapman and Hall, pp. 219–243.