@inproceedings{Alexandrov:2016Pz,
  author = "Alexandrov, Sergey",
  title = "{First order gravity on the light front}",
  doi = "10.22323/1.224.0154",
  booktitle = "Proceedings of Frontiers of Fundamental Physics 14 {\textemdash} PoS(FFP14)",
  year = 2016,
  volume = "224",
  pages = "154"
}