1. Carbon dioxide emissions from fossil fuel consumption and cement manufacture, 1751–1991; and an estimate of their isotopic composition and latitudinal distribution;Andres,1994
2. Midpoints versus endpoints: the sacrifices and benefits. Life cycle impact;Bare;Int. J. Life Cycle Assess.,2000
3. Test for Geometrical Properties of Aggregates – Part 11: Classification Test for the Constituents of Coarse Recycled Aggregate;EN 933-11,2009
4. Environmental Management – Life Cycle Assessment. Principles and Framework;EN ISO 14040,2006
5. Environmental Management – Life Cycle Assessment. Requirements and Guidelines;EN ISO 14044,2006