@article{108921,
      note = {Prepared by Joy Hood, Lyman Ladner and Richard Champion.},
      author = {Champion, Richard. and Ladner, Joy Hood Lyman.},
      url = {http://digitallibrary.un.org/record/108921},
      title = {Image processing techniques for digital orthophoto  production : paper /},
      publisher = {UN,},
      recid = {108921},
      pages = {15 p. :},
      address = {[New York] :. 1991-01-21},
      year = {1991},
      month = {Jan},
}