@article{Francaviglia:2012UO,
  author = "Francaviglia, Mauro  and  Fatibene, Lorenzo",
  title = "{From the Ehlers-Pirani-Schild analysis on the foundations of gravitational theories to extended theories of gravity and dark matter}",
  doi = "10.22323/1.155.0054",
  journal = "PoS",
  year = 2012,
  volume = "CORFU2011",
  pages = "054"
}