1. The requirements of an interactive display and edit facility for cartography;Boyle;The Canadian Cartographer,1976
2. Crawley , B. G. 1974 Automatic contouring on the Gestalt photomapper 2-1 Proceedings of American Society of Photogrammetry, Fall Convention 456 50 56
3. Analog to hybrid stereo plotter;Dorrer;Photogrammetric Engineering,1974
4. Dowman , I. J. 1974 Off-line contour plotting using the CP 1 photogrammetric plotter Proceedings of Commission 5, FIG XIV International Congress 35