1. An Image Analyzing Computer;Fisher;Bio-Medical Eng. J.,1967
2. Instrument Errors in Quantitative Image Analysis;Cole;Microscope,1971
3. The New Quantamet 720;Fisher;Microscope,1971
4. The Flying-Spot Microscope;Roberts,1952
5. Multi-Channel Photoelectric Scanning Instrument for Sizing Microscopic Particles;Morgan;J. Sci. Inst.,1959