1. Ahern J (2011) From fail-safe to safe-to-fail: sustainability and resilience in the new urban world. Landscape Urban Plan 100:341–343
2. Bridgman HA, Warner RF, Dodson JR (1995) Urban biophysical environments. Meridian Australian geographical perspectives. Oxford University Press, Melbourne, VIC
3. Burton E, Jenks M, Williams K (eds) (1996) The compact city: a sustainable urban form? E & FN Spon, London
4. EEA (2006) Urban sprawl in Europe. The ignored challenge. EEA report 10, Luxembourg
5. Erz W (1980) Naturschutz - Grundlagen, Probleme und Praxis (Nature conservation—basics, problems and practice). In: Buchwald K, Engelhardt W (eds) Die Bewertung und Planung der Umwelt. BLV Verlag, Munich, pp 560–637