@article{ravetz2000integrated,
  title = {Integrated assessment for sustainability appraisal in cities and regions}
  author = {Ravetz, Joe},
  journal = {Environmental Impact Assessment Review},
  url = {http://www.sciencedirect.com/science/article/pii/S0195925599000372},
  doi = {10.1016/S0195-9255(99)00037-2},
  year = {2000}
}