1. A Focus Sensor Based on Lateral Image Separation;Vyce;Itek Report 9730-99,1964
2. Focus Sensor Experimental Program;Vyce;Itek Preliminary Report 65-9730-99,1965
3. An Autocollimating Focus Sensor for Optical Systems of High Angular Resolution;Vyce,1969
4. The Theory of the Microscope;Martin,1966