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2. Semi-automated approaches for spectral class definition;Bolstad;Intern. Jour. Remote Sensing,1991
3. Semiautomated training field extraction and analysis for efficient digital image classification;Buchheim;Photogrammetric Engineering and Remote Sensing,1989
4. Segmentation of remotely sensed images by a split-and-merge process;Cross;Intern. Jour. Remote Sensing,1988
5. Ancillary data input to satellite remote sensing of complex terrain phenomena;Franklin;Computers & Geosciences,1989