@article{55525, note = {Prepared by W.S. Hartley.}, author = {Hartley, W.S.}, url = {http://digitallibrary.un.org/record/55525}, title = {Line mapping from satellites in the Ordinance Survey : paper /}, publisher = {UN,}, recid = {55525}, pages = {5 p.}, address = {[New York] :. 1989-01-12}, year = {1989}, month = {Jan}, }