@article{938592,
      author = {Rosenbaum, Paul R.},
      url = {http://library.usi.edu/record/938592},
      title = {Design of observational studies /},
      publisher = {Springer,},
      recid = {938592},
      pages = {1 online resource},
      address = {Cham :},
      year = {2020},
}