@article{skene2018circles,
  title = {Circles, spirals, pyramids and cubes: why the circular economy cannot work}
  author = {Skene, Keith Ronald},
  journal = {Sustainability Science},
  url = {https://doi.org/10.1007/s11625-017-0443-3},
  doi = {10.1007/s11625-017-0443-3},
  year = {2018}
}