1. Korre A, D1.1 – Report on the international regulatory requirements on CO2 geological storage and site abandonment. CO2CARE - CO2 Site Closure Assessment Research, Grant Agreement number: 256625, 2011; www.co2care.org.
2. NORSOK Standard D-010 Norway (http://www.npd.no/).
3. UK Oil and Gas Association (UKOOA) Guidelines for the Suspension and Abandonment of Wells. (http://www.ukooaenvironmentallegislation.co.uk).
4. Wollenweber, J., D1.2 – Report on the current site abandonment methodologies in relevant industries. CO2CARE - CO2 Site Closure Assessment Research, Grant Agreement number: 256625, 2011; www.co2care.org.
5. IPCC - Special Report on Carbon Dioxide Capture and Storage, Prepared by Working Group III of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge, UK and New York, NY, USA 2005, 442 pp.