@article{40651,
      url = {http://library.usi.edu/record/40651},
      title = {Electric flight systems /},
      publisher = {National Aeronautics and Space Administration, Scientific  and Technical Information Branch,},
      recid = {40651},
      pages = {vii, 271 p. :},
      address = {Washington, D.C. :},
      year = {1982},
}