@article{64413,
      note = {"Frascati manual."},
      url = {http://library.usi.edu/record/64413},
      title = {The measurement of scientific and technical activities :  proposed standard practice for surveys of research and  experimental development.},
      publisher = {Organization for Economic  Co-operation and Development ;},
      recid = {64413},
      pages = {139 p. :},
      address = {Paris :},
      year = {1976},
}