@article{100,
  author = {Christoph Helbig and Eskinder Gemechu and Baptiste Pillain and Steven Young and Andrea Thorenz and Axel Tuma and Guido Sonnemann},
  title = {Extending the geopolitical supply risk indicator: Application of life cycle sustainability assessment to the petrochemical supply chain of polyacrylonitrile-based carbon fibers},
  year = {2016},
  journal = {Journal of Cleaner Production},
  volume = {137},
  chapter = {1170},
  doi = {10.1016/j.jclepro.2016.07.214},
}