NASA NTRS · 19720021716
Earth resources cartography program
Abstract
Progress is reported on efforts to develop techniques of using space vehicle and high altitude aircraft imagery in cartography projects. Major efforts were made to develop an operational system for isolating specified themes from the imagery.
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Colvocoresses, A. P.. 1972-01-21. Earth resources cartography program. https://ntrs.nasa.gov/citations/19720021716
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