1. Monbiot G. (2014) Reframing the planet. Http://www.monbiot.com/2014/04/22/reframing-the-planet/ [accessed 5 June 2015].
2. Roberts J.P. & Waage S. (2007) Negotiating for Nature's Services. Http://www.katoombagroup.org/documents/publications/NegotiatingforNature.pdf [accessed 5 June 2015].
3. Department for Communities and Local Government (2012) National Planning Policy Framework. Https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/6077/2116950.pdf [accessed 15 June 2015].
4. Conway M. , Rayment M. , White A. & Berman S. (2013) Exploring Potential Demand for and Supply of Habitat Banking in the EU and Appropriate Design Elements for a Habitat Banking Scheme. Final report submitted to DG Environment. ICF GHK and BIO Intelligence Service, London, UK.