@misc{indiciae6cb75bb56a77,
  title = {Cascading gravity is ghost free},
  author = {Rham, Claudia de and Khoury, Justin and Tolley, Andrew J},
  year = {2010},
  doi = {10.1103/physrevd.81.124027},
  url = {https://www.osti.gov/biblio/21408085},
  note = {Source identifier: 21408085}
}