@article{Lund2016geothermal,
  author = {Lund and Boyd},
  title = {Direct utilization of geothermal energy 2015 worldwide review},
  journal = {Geothermics},
  year = {2016},
  doi = {10.1016/j.geothermics.2015.11.004},
  url = {https://doi.org/10.1016/j.geothermics.2015.11.004}
}

@article{Zhang2013concentrated,
  author = {Zhang and Baeyens and Degrève and others},
  title = {Concentrated solar power plants: Review and design methodology},
  journal = {Renewable and Sustainable Energy Reviews},
  year = {2013},
  doi = {10.1016/j.rser.2013.01.032},
  url = {https://doi.org/10.1016/j.rser.2013.01.032}
}

@article{Ghasemi2014solar,
  author = {Ghasemi and Ni and Marconnet and others},
  title = {Solar steam generation by heat localization},
  journal = {Nature Communications},
  year = {2014},
  doi = {10.1038/ncomms5449},
  url = {https://doi.org/10.1038/ncomms5449}
}
