1. Brentrup, F.
,
Küsters, J.
,
Kuhlmann, H.
and
Lammel, J.
(2004), “Environmental impact assessment of agricultural production systems using the life cycle assessment methodology I. Theoretical concept of a LCA method tailored to crop production”, European Journal of Agronomy, Vol. 20, pp. 247-264.
2. BSI
(2008), PAS 2050:2008. Specification for the Assessment of the Life Cycle Greenhouse Gas Emissions of Goods and Services. Publicly Available Specification, British Standards Institute, Carbon Trust, Department for Environment, Food and Rural Affairs (Defra), British Standards Institute (BSI), London.
3. CALU
(2007), Managing Energy and Carbon: The Farmers Guide to Energy Audits, Centre for Alternative Land Use (CALU), University of Bangor, Wales.
4. CCaLC
(2011), Carbon Calculations Over the Life Cycle of Industrial Activities, CCaLC, available at: www.ccalc.org.uk/index.php (accessed 25 September 2012).
5. Cederberg, C.
and
Stadig, S.
(2003), “System expansion and allocation in life cycle assessment of milk and beef production”, International Journal of Life Cycle Assessment, Vol. 8 No. 6, pp. 350-356.