@article{giampietro2006comments,
  title = {Comments on “The Energetic Metabolism of the European Union and the United States” by Haberl and Colleagues: Theoretical and Practical Considerations on the Meaning and Usefulness of Traditional Energy Analysis}
  author = {Giampietro, Mario},
  journal = {Factor X: Challenges, Implementation Strategies and Examples for a Sustainable Use of Natural Resources},
  url = {https://onlinelibrary.wiley.com/doi/abs/10.1162/jiec.2006.10.4.173},
  doi = {10.1162/jiec.2006.10.4.173},
  year = {2006}
}