@book{227,
  author = {IPCC and S Solomon and D Qin and M Manning and Z Chen and M Marquis and K. Averyt and M Tignor and H. Miller},
  title = {Summary for Policymakers: Climate Change 2007: The Physical Science Basis. Contribution of Working Group III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change},
  year = {2007},
  publisher = {Cambridge University Press},
  address = {Cambridge},
}