@article{400472,
      author = {Nelson, Richard R.},
      url = {http://library.usi.edu/record/400472},
      title = {National innovation systems a comparative analysis /  [electronic resource] :},
      publisher = {Oxford University Press,},
      recid = {400472},
      pages = {x, 541 p.},
      address = {New York :},
      year = {1993},
}