@article{frenken2017political,
  title = {Political economies and environmental futures for the sharing economy}
  author = {Frenken, Koen},
  journal = {Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences},
  url = {https://royalsocietypublishing.org/doi/10.1098/rsta.2016.0367},
  year = {2017}
}