@article{li-1984,
  title={Classification and regression trees (CART)},
  author={Li, Bin and Friedman, J and Olshen, R and Stone, C},
  journal={Biometrics},
  volume={40},
  number={3},
  pages={358--361},
  year={1984}
}

@techreport{WHO-2018,
    title = {{Global Status Report on Road}},
    year = {2018},
    author = {{World Health Organization}},
    pages = {406},
    url = {www. who.int},
    institution = {W.H.O},
    isbn = {978 92 4 156506 6}
}

