1Hopper H, Gddman C, ed al. Public and Institutional Markets for ESCO Services:Comparing Programs, Practices and Performance[J].Ernest Orlando Lawrence Berkeley National Laboratory, 2005,3.
2Hopper H, Gddman C, ed al.A Survey of the U.S. ESCO Industry: Market Growth and Development from 2000 to 2006[J].Ernest Orlando Lawrence Berkeley National Laboratory,2007,5.
