@inproceedings{Lewandowski:2016Vz,
  author = "Lewandowski, Jerzy",
  title = "{Background independence of GR and in LQG}",
  doi = "10.22323/1.224.0037",
  booktitle = "Proceedings of Frontiers of Fundamental Physics 14 {\textemdash} PoS(FFP14)",
  year = 2016,
  volume = "224",
  pages = "037"
}