@Article{ 
  CosMir12,
  author = { Costea, Serban and Miranda Jr, Michele },
  title = { Newtonian Lorentz Metric Spaces },
  journal = { Illinois Journal of Mathematics },
  year = { 2012 },
  doi = { 10.1215/ijm/1385129966 },
  volume = { 56 },
  number = { 2 },
  pages = { 579-616 },
  URL = { http://cvgmt.sns.it/paper/2037/ },
  note = { cvgmt preprint}
}