1. Barker, G., 1997. A framework for the future: green networks with multiple uses in and around towns and cities. English Nature research report number 256. English Nature, Peterborough.
2. Beer, A., 2005. The green structure of Sheffield. In: Werquin, A.C., Duhem, B., Lindholm, G., Oppermann, B., Pauleit, S., Tjallingii, S. (Eds.), Green structure and urban planning. Final report of COST Action C1. COST Programme, Brussels, pp. 40–51.
3. Ecosystem services in urban areas;Bolund;Ecol. Econ.,1999
4. Walkable route perceptions and physical features: converging evidence for en route walking experiences;Brown;Environ. Behav.,2007
5. Green space planning and land use: an assessment of urban regional and green structure planning in Greater Copenhagen;Caspersen;Geogr. Tidsskr.,2006