7Katherine Jennrich.Wal-Mart Supply Chain GHG Reporting Initiative[D].North Carolina, Nicholas School of the Environment and Earth Sciences of Duke University, 2007 (10) : 30-32.
9Flora Vadas, Alexander Stoffregen, Dr. Constantin Herrmann. Evaluating Environmental Performance in Low-Carbon Energy Systems [C]. Case Studies with the Ecodesign Toolbox 3,Brussels,Belgium;European Copper Institute,2009 (3) : 40-52.