@article{LangrockSterk2005,
  author    = {Langrock, Thomas and Sterk, Wolfgang},
  title     = {The developing market for CERs : current status and challenges ahead},
  journal   = {Journal for European environmental \& planning law},
  volume    = {2},
  number    = {2},
  doi       = {10.1163/187601005X00165},
  pages     = {101 -- 111},
  year      = {2005},
  language  = {en}
}