@article{423540,
      author = {Woessmann, Ludger. and Peterson, Paul E.},
      url = {http://library.usi.edu/record/423540},
      title = {Schools and the equal opportunity problem [electronic  resource] /},
      publisher = {MIT Press,},
      recid = {423540},
      pages = {vi, 327 p. :},
      address = {Cambridge, Mass. :},
      year = {2007},
}