@article{2014estimation,
  title = {Estimation of Life Cycle Material Costs of Cadmium Telluride– and Copper Indium Gallium Diselenide–Photovoltaic Absorber Materials based on Life Cycle Material Flows}
  author = { Max Marwede and Armin Reller},
  journal = {Journal of Industrial Ecology},
  doi = {10.1111/jiec.12108},
  year = {2014}
}