@article{408079,
      author = {Della Porta, Donatella, and Reiter, Herbert.},
      url = {http://library.usi.edu/record/408079},
      title = {Policing protest the control of mass demonstrations in  Western democracies / [electronic resource] :},
      publisher = {University of Minnesota Press,},
      recid = {408079},
      pages = {302 p. :},
      address = {Minneapolis :},
      year = {1998},
}