1. Ayres RU, Ayres LW, Warr B (2003) Exergy, power and work in the US economy, 1900–1998. Energy 28:219–273
2. Bejan A (1997) Advanced Engineering Thermodynamics, 2nd edn. John Wiley and Sons, Toronto
3. Technical report;S. Bringezu,2001
4. Çengel YA, Boles M.A. (1994) Thermodynamics, an engineering approach, 2nd edn. McGraw-Hill Inc., New York
5. Chambers N, Simmons C, Wackernagel M (2001) Sharing Nature’s Interest: Ecological Footprints as an Indicator of Sustainability. Earthscan Publications Ltd., London