@article{357735,
      author = {Frees, Edward W.},
      url = {http://library.usi.edu/record/357735},
      title = {Longitudinal and panel data analysis and applications in  the social sciences / [electronic resource] :},
      publisher = {Cambridge University Press,},
      recid = {357735},
      pages = {xvi, 467 p. :},
      address = {Cambridge, UK ;},
      year = {2004},
}